Explore topic-wise MCQs in Waste Water Engineering.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Waste Water Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the percentage of phosphorus present in bacterial biomass?

A. 0.2%
B. 0.3%
C. 0.8%
D. 1%
Answer» E.
Discussion
2.

What does PAO stand for?

A. Poly-ammonium oxygenate
B. Polyphosphate-accumulating organisms
C. Poly-ammonium organisms
D. Phosphate-ammonium organisms
Answer» C. Poly-ammonium organisms
Discussion
3.

______ is present in EBPR implementations.

A. Aeration tank
B. Anaerobic tank
C. Aerobic and anaerobic tank
D. No tanks
Answer» D. No tanks
Discussion
4.

How much amount of phosphorus is removed by secondary treatment?

A. 0.2-0.3 mg/l
B. 0.4-0.6 mg/l
C. 0.5-1 mg/l
D. 1-2 mg/l
Answer» E.
Discussion
5.

________ undergo hydrolysis and revert to the orthophosphate forms.

A. Biophosphorus
B. Orthophosphate
C. Phosphate
D. Polyphosphate
Answer» E.
Discussion
6.

What is the phosphorus available for a biological process called?

A. Phosphate
B. Orthophosphate
C. Polyphosphate
D. Biophosphorus
Answer» C. Polyphosphate
Discussion
7.

What is the average phosphorus contribution per person per day?

A. 1.2 g
B. 2.18 g
C. 3.26 g
D. 4.25 g
Answer» C. 3.26 g
Discussion
8.

Phosphorus is the main component of synthetic detergents.

A. True
B. False
Answer» B. False
Discussion
9.

What is the amount of phosphorus present in municipal wastewater?

A. 1-2 mg/L
B. 2-8 mg/L
C. 4-12 mg/L
D. 5-20 mg/L
Answer» E.
Discussion
10.

What is the percentage of sludge in phosphorus removal by chemical precipitation?

A. 10%
B. 20%
C. 30%
D. 40%
Answer» E.
Discussion
11.

Phosphorus is one of the responsible factors for eutrophication.

A. True
B. False
Answer» B. False
Discussion