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.
Before you buy make sure you have the most up-to-date book available! You can also practice online at www.theory-tests.co.uk/home/. The test will last 57 minutes, and you need to get 43 of the 50 questions right to pass.You will be given some practise questions before you get started â use these to get used to the touch screen system and help you relax.ou can also practice online at www.theory-tests.co.uk/home/. The test will last 57 minutes, and you need to get 43 of the 50 questions right to pass. You will be given some practise questions before you get started â use these to get used to the touch screen system and help you relax.