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.

In rotating biological contractors, what percent of corrugated plastic discs are submerged?

A. 20
B. 50
C. 80
D. 40
Answer» E.
Discussion
2.

__________ is a process which involves further removal of the nitrogen.

A. Nitrification
B. Denitrification
C. Ammonification
D. Reduction
Answer» C. Ammonification
Discussion
3.

Nitrification efficiency is significantly suppressed as the temperature is _________

A. Increased
B. Decreased
C. Neutral
D. Maintained
Answer» C. Neutral
Discussion
4.

What is the intermediate zone composed of in aerobic-anaerobic ponds?

A. Algae
B. Aerobic bacteria
C. Facultative bacteria
D. Organic solids
Answer» D. Organic solids
Discussion
5.

What is the most common used coagulant?

A. Alum
B. Ferric sulphate
C. Limestone
D. Coal
Answer» B. Ferric sulphate
Discussion
6.

Which process is employed to gain sufficient head for the wastewater?

A. Screening
B. Pumping
C. Oxidation
D. Fermentation
Answer» C. Oxidation
Discussion
7.

Which of the following should be provided in the case where aeration is absent?

A. Screening devices
B. Mechanical mixers
C. Grit removers
D. Sedimentation tank
Answer» C. Grit removers
Discussion
8.

Supplemental means of aeration are often employed with an equalization basin to provide better mixing.

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

__________ represents the heavier inert matter in wastewater.

A. Debris
B. Waste
C. Screens
D. Grit
Answer» E.
Discussion
10.

_____ devices remove materials which would damage equipment or interfere with a process.

A. Grit
B. Screening
C. Oxidation
D. Reduction
Answer» C. Oxidation
Discussion
11.

Screening and comminution are preliminary treatment processes.

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