Question 5005 of 234 · California Wastewater Operator Exam
Dissolved oxygen in a pond is usually highest
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 5005
- C: in the afternoon
Explanation
Photosynthesis raises DO through the day, peaking in mid-afternoon. DO then falls overnight and reaches its lowest point just before sunrise.
More questions: Stabilization Ponds
- 5006The pH of a healthy pond during the day is usually
- 5007A pond that turns from green to gray or black and develops strong odors has most likely
- 5008A pond that is pink or red in color is often due to
- 5009Which is a common method to control emergent vegetation on pond dikes?
- 5010Which animal activity may seriously damage pond dikes?
- 5011The organic loading rate of a pond is typically expressed as