Civil Engineering - Water Supply Engineering

6. 

For estimating the run off of catchments, the mean value of the constant 'K' in the Khosla's formula Qy = Py - K (1.8 Ty + 32) is

A. 1.21
B. 1.23
C. 1.25
D. 1.27
E. 1.31

Answer: Option D

Explanation:

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7. 

Service connections to consumers houses, are generally provided with

A. copper pipes
B. hume pipes
C. galvanised iron pipes
D. P.V.C. pipes
E. none of these.

Answer: Option C

Explanation:

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8. 

Sluice valves are fitted in a distribution system

A. along straight length of pipes at suitable intervals
B. at the junctions of the pipes
C. at the branching off points of sub-mains
D. all the above.

Answer: Option D

Explanation:

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9. 

The detention period for plain sedimentation water tanks, is usually

A. 4 to 8 hours
B. 8 to 16 hours
C. 16 to 24 hours
D. 24 to 36 hours.

Answer: Option D

Explanation:

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10. 

The maximum permitted loss of head in a rapid sand filter, is

A. 1 m
B. 2 m
C. 3 m
D. 4 m
E. 5 m.

Answer: Option C

Explanation:

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