Question 4004 of 234 · California Wastewater Operator Exam
If the operator wastes more sludge from an activated sludge system, the mean cell residence time (MCRT) will
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 4004
- D: decrease
Explanation
More wasting removes solids faster, so the average time organisms stay in the system falls. Wasting less lengthens it.
More questions: Secondary Treatment (Activated Sludge, Trickling Filters, RBC)
- 4005Which F/M ratio range is typical for a conventional activated sludge plant?
- 4006A very low F/M ratio in an activated sludge plant tends to produce
- 4007Which sludge condition is typically seen with a high F/M ratio?
- 4008A sludge volume index (SVI) of 80 mL/g indicates
- 4009Filamentous bulking is often related to
- 4010Which microscopic organism is commonly found in a healthy, well-settling activated sludge with moderate sludge age?