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.
What is the cscs pass number of questions. The pass mark varies depending on what test youâre doing but generally you have to score above 90% to pass.The Health, Safety & Environment Test lasts 45 minutes. In the test there will be around 50 questions that you need to answer, you need to score 46 out of 50 questions to pass. Types of CSCS Tests:1  Operative CSCS Test.2  Working at Heights CSCS Test. 3  Supervisor CSCS Test. 4  Refrigeration and Air Conditioning CSCS Test.5  Pipe Fitting and Welding CSCS Test.hat is the cscs pass number of questions. The pass mark varies depending on what test youâre doing but generally you have to score above 90% to pass.