Question 1015 of 229 · California Water Distribution Operator Exam
Which standard covers the disinfection of new and repaired water mains?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 1015
- D: AWWA C651
Explanation
C651 is for mains, C652 for storage facilities, C653 for treatment plants and C654 for wells. Operators should be able to match each standard to its facility.
More questions: Disinfection
- 1016A well is most likely to need disinfection in which situation?
- 1017Which of the following is a common source of contamination of a water storage reservoir?
- 1018Chlorine gas is heavier than air. Where should an operator expect leaking gas to collect?
- 1019At which pH is free chlorine the most effective disinfectant?
- 1020Which form of free chlorine is the stronger disinfectant?
- 1021What chlorine to ammonia-nitrogen ratio, by weight, is typically targeted when making chloramines?