Civil Engineering - Waste Water Engineering

41. 

The asbestos cement pipes are generally laid

A. horizontally
B. vertically
C. at an angle of 30°
D. at an angle of 60°.

Answer: Option B

Explanation:

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42. 

Chlorination of water is done for the removal of

A. bacterias
B. suspended solids
C. sediments
D. hardness.

Answer: Option A

Explanation:

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43. 

For evaporation and measurement of settlable solids, the apparatus used, is

A. a jar
B. a breaker
C. a test tube
D. an Imhoff cone.

Answer: Option D

Explanation:

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44. 

In SI units the power of sound is represented in

A. kgs
B. joules
C. neutons
D. watts.

Answer: Option D

Explanation:

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45. 

A rain sanitary sewer is constructed to carry

A. sanitary sewage
B. storm sewage
C. surface water
D. ground water
E. all the above.

Answer: Option A

Explanation:

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