Clorox bleach can be safely used to purify water in the event of an emergency. Clorox recommends adding 2 drops of bleach to 1 quart of water or 8 drops of bleach to 1 gallon of water. Clorox warns that only regular bleach is suitable for purifying water; scented bleaches are not safe for water purification.
The pass mark for the Theory Test is 86%, so you'll need to answer 43/50 multiple choice questions correctly to pass. And for the hazard perception section of the test, you need to score 44/75. You must score a pass in both sections of the theory test to pass the overall test. What is the current pass rate for the theory test? The 2015/16 pass rate for the theory test is 49.3%*, which means just over half of all people who sit their Theory Test fail it.
Your test has 150 questions how many do you need to get right to pass? It depends entirely on your course and place of study. Many will have a requirement of at least 50% (thus you need at least 75 right) but some do have higher limits. In additiâ¦on, the test might only be one element of assessment, so the mark you get there could be zero if you have enough points already, or you may not be able to pass even if you get them all right.