Civil Engineering - Water Supply Engineering

21. 

Disappearance of pink colour of water of a well due of KMnO4 indicates that water contains

A. acidity
B. alkalinity
C. turbidity
D. organic matter
E. all the above.

Answer: Option D

Explanation:

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22. 

Shales are

A. porous
B. permeable
C. porous and permeable
D. porous but not permeable
E. neither porous nor permeable.

Answer: Option D

Explanation:

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23. 

Water is distributed to consumers by gravitational system, in

A. Dehradun
B. Bombay
C. Delhi
D. Calcutta
E. Both (a) and (b).

Answer: Option E

Explanation:

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24. 

Grade aqueducts are not allowed to run

A. full
B. th full
C. full
D. th full.

Answer: Option A

Explanation:

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25. 

The type of joint generally used in cast iron pipes, is

A. socket and spigot joint
B. flanged joint
C. dresser coupling joint
D. flexible joint
E. all the above.

Answer: Option E

Explanation:

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