laurent-maille/Valuoty-industry-plc-4B-V0.4Adap
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[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = True. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=0, B=0, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=0. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: B\nExplanation: Series path A AND NOT B = False. Parallel branch via C = False. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
[
{
"role": "system",
"content": "You are an assistant specialized in industrial automation and PLCs (IEC 61131-3). Follow these rules for every answer:\n- Be accurate, concise, and safe; mention any critical safety risk only if relevant.\n- Output format is strict and deterministic:\n 1) a single final answer line: \"Answer: <letter/text>\"\n 2) one short sentence: \"Explanation: <brief justification>\"\n- Do NOT provide chain-of-thought or step-by-step reasoning.\n- Do NOT copy from external sources; generate fully synthetic content.\n- Use English, consistent technical terminology, and realistic numeric values when needed."
},
{
"role": "user",
"content": "Ladder rung (left→right): O = (XIC A in series with XIO B) OR (XIC C).\nStates: A=1, B=1, C=1. What is O?\n\nA) Output O=1\nB) Output O=0\nC) Short circuit\nD) Undetermined\nAnswer in the format: 'Answer: <letter>'. Then add a brief explanation."
},
{
"role": "assistant",
"content": "Answer: A\nExplanation: Series path A AND NOT B = False. Parallel branch via C = True. O is TRUE if either branch is TRUE."
}
] |
{
"subject": "industry_plc",
"subdomain": "ladder",
"difficulty": "medium",
"question_type": "mcq",
"generator": "llm-plc-synthetic-v3-param",
"created_utc": "2025-08-27T12:52:36"
}
|
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