Question 7004 of 234 · California Wastewater Operator Exam
Chlorine residual is
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 7004
- D: the chlorine remaining after the demand has been satisfied usually
Explanation
Residual is what is left in the water after the contact time. Free and combined residuals are measured.
More questions: Disinfection and Dechlorination
- 7005Combined chlorine residual is formed when chlorine reacts with
- 7006Compared with free chlorine, combined chlorine residual is
- 7007Which factor does NOT improve chlorine disinfection?
- 7008A chlorine contact tank is designed to provide
- 7009For disinfected tertiary recycled water, California Title 22 requires a chlorine disinfection process to provide a CT of at least 450 mg-min/L and a modal contact time of at least
- 7010How is chlorine gas supplied to treatment plants?