Civil Engineering - Water Supply Engineering

Exercise :: Water Supply Engineering - Section 1

36.

The least thickness of class B cast iron (spun) pipe, is

 A. 7.2 mm B. 7.9 mm C. 8.6 mm D. 10 mm.

Explanation:

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37.

According to IS : 1172-1963, a minimum of 135 litres of water capita per day, is required for

 A. Boarding schools B. Nurses home and medical quarters C. hostels D. all the above.

Explanation:

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38.

The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level

 A. 1500 m B. 1505 m C. 1475 m D. 1485 m.

Explanation:

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39.

The factor affecting per capita demand, is

 A. size of the city B. climatic conditions C. pressure in water mains D. cost of water E. all the above.

Explanation:

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40.

Pick up the incorrect statement from the following. The underground sources of water, is from

 A. wells B. springs C. infiltration wells D. storage reservoirs E. none of these.