Explore topic-wise MCQs in Waste Water Engineering.

This section includes 12 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 velocity of wastewater within the ditch?

A. 0.5 ft/s
B. 0.7 ft/s
C. 5 ft/s
D. 2 ft/s
Answer» E.
Discussion
2.

Oxidation ditch uses ______ to remove biodegradable organics.

A. Long SRTs
B. Short SRTs
C. pH
D. chemicals
Answer» B. Short SRTs
Discussion
3.

WHAT_IS_THE_VELOCITY_OF_WASTEWATER_WITHIN_THE_DITCH??$

A. 0.5 ft/s
B. 0.7 ft/s
C. 5 ft/s
D. 2 ft/s
Answer» E.
Discussion
4.

Which of the following process is not adopted in oxidation ditches?$

A. Adsorption
B. Desorption
C. Oxidation
D. Decomposition
Answer» C. Oxidation
Discussion
5.

Oxidation ditch uses ______ to remove biodegradable organics?

A. Long SRTs
B. Short SRTs
C. pH
D. chemicals
Answer» B. Short SRTs
Discussion
6.

Which of the following is MLSS concentration not dependant upon?

A. Surface area of sedimentation
B. Rate of return sludge
C. Aeration process
D. Number of bar screens
Answer» E.
Discussion
7.

What is the range of MLSS concentration in oxidation ditch?

A. 500-1000 mg/L
B. 1000-2000 mg/L
C. 2000-4000 mg/L
D. 3000-5000 mg/L
Answer» E.
Discussion
8.

Anaerobic conditions occur at the bottom of the ditches.

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

What is the range of liquid depth in oxidation ditches?

A. 0.2-0.3 m
B. 0.3-0.5 m
C. 0.5-0.9 m
D. 0.9-1.5 m
Answer» E.
Discussion
10.

The ditch is lined by _______ layer.

A. Brick
B. Cement
C. Permeable
D. Impermeable
Answer» E.
Discussion
11.

What is the shape of the oxidation ditch?

A. Square
B. Rectangular
C. Circular
D. Oval
Answer» E.
Discussion
12.

Oxidation ditch is an extended activated sludge process.

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