Civil Engineering - Water Supply Engineering

46. 

The maximum pressure to which cast iron pipes may be subjected to, is

A. 3 kg/cm2
B. 5 kg/cm2
C. 7 kg/cm2
D. 10 kg/cm2.

Answer: Option C

Explanation:

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47. 

The type of pipe commonly used in water supply distribution schemes, is

A. R.C.C. pipes
B. Hume pipes
C. Cast iron pipes
D. G.I. pipes.

Answer: Option C

Explanation:

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48. 

The valve shown in the below figure, is generally known as

A. air valve
B. pressure relief valve
C. sluice valve
D. none of these.

Answer: Option B

Explanation:

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49. 

The population of a city in 2000 is 50, 000. The average per decade of the previous records of population is 5000 and average percentage per decade is 20%. The population of the city based on geometrical increase method, in the year 2020 will be

A. 56, 000
B. 60, 000
C. 64, 000
D. 70, 000
E. 72, 000

Answer: Option E

Explanation:

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