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Sedimentation Tanks MCQ Questions And Answers - Waste Water Engineering

Sedimentation Tanks MCQs : This section focuses on the "Sedimentation Tanks" in Waste Water Engineering. These Multiple Choice Questions (MCQs) should be practiced to improve the Waste Water Engineering skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Sedimentation tank, also called?

A. settling tank
B. clarifier
C. Both A and B
D. None of the above

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Question 2

A sedimentation tank allows suspended particles to settle out of water or wastewater as it flows slowly through the tank, thereby providing some degree of purification.

C. Can be true or false
D. Can not say

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Question 3

A layer of accumulated solids, called?

A. coagulants
B. sewage
C. settle
D. sludge

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Question 4

Which of the following added to the water prior to sedimentation in order to facilitate the settling process?

A. trickling
B. coagulants
C. grit
D. None of the above

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Question 5

In modern sewage treatment, primary sedimentation must be followed by secondary treatment to increase purification efficiencies.

A. Yes
B. No
C. Can be yes or no
D. Can not say

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Question 6

What are the ponds constructed for removing entrained solids called?

A. Clarifiers
B. Settling basins
C. Eco-ponds
D. Ditches

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Question 7

What is the accumulated layer at the bottom of the tank called as?

A. Flocs
B. Sediment
C. Sludge
D. Sewage

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Question 8

Which is the primary force acting on the Settleable particles?

A. Gravitational force
B. Centrifugal force
C. Mechanical force
D. Radial force

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Question 9

How many types of settling are present?

A. 1
B. 2
C. 3
D. 4

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Question 10

Sedimentation is usually preceded by treatment using ______________ to remove large objects and coarse solids.

A. bar screens
B. grit chambers
C. bar screens and grit chambers
D. None of the above

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