Civil Engineering - Water Supply Engineering

1. 

The most ideal disinfectant used for drinking water throughout the world, is

A. alum
B. lime
C. chlorine
D. nitrogen
E. ammonia.

Answer: Option C

Explanation:

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2. 

A centrifugal pump is required to be primed before starting if it is located

A. at higher level than water level of reservoir
B. at lower level than water level of reservoir
C. both (a) and (b)
D. neither (a) nor (b).

Answer: Option A

Explanation:

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3. 

The maximum pressure which the pipe can withstand without any leakage during hydrostatic pressure test, is called

A. Working pressure
B. Design pressure
C. Test pressure
D. Hydrostatic pressure.

Answer: Option C

Explanation:

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4. 

Filtration of water is done to remove

A. colour
B. odour
C. turbidity
D. pathogenic bacteria
E. all the above.

Answer: Option C

Explanation:

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5. 

Generally, first portion of a logistic curve for the population growth of a developing city, represents the growth of

A. increasing
B. decreasing
C. constant
D. all the above.

Answer: Option A

Explanation:

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