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.
Rating Newest Oldest. Best Answer: You have 57 minutes to complete the test and to pass you must have 43 correct answers out of the 50 asked. So the pass mark is 86% so anything less then you will fail. http://www.direct.gov.uk/en/Motoring/Lea...ou also heve to get 44 out of 75 in the hazard perception test and if you fail that or the questions then you fail the whole thing. Timbo is here Â· 6 years ago.