Water Supply Engineering Mcqs

This set of Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Water Supply Engineering ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Civil Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Water Supply Engineering comprehensively.

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1.
The fire demand of a city may be worked out by _________________?

Kuichling’s formula

Freeman formula

Under Writers formula

Bustan’s formula

All the above.

2.
The yield of a rapid gravity filter as compared to that of slow sand filter, is__________________?

10 times

15 times

20 times

30 times

3.
Sunlight_________________ ?

Helps growth of bacterias

Impedes growth of algae

Increases dissolved oxygen content

Reduces turbidity

4.
Average annual rainfall at any station is the average of annual rainfall over a period of________________?

7 years

14 years

21 years

28 years

35 years

5.
Surge tanks are used_______________?

For storage water

To increase the velocity in a pipeline

As overflow valves

To guard against water hammer

7.
In distribution pipes, drain valves are provided at_______________?

Lower point

Higher point

Junction points

Any where

8.
Asbestos pipes are ______________?

Light in weight and easy to transport

Highly resistant to corrosion

High flexible to accommodate deflection upto 12°

Very much smooth and hydraulically efficient

All the above

9.
By boiling water, hardness can be removed if it is due to_________________?

Calcium sulphate

Magnesium sulphate

Calcium nitrate

Calcium bicarbonate

10.
The least thickness of class B cast iron (spun) pipe, is_________________?

7.2 mm

7.9 mm

8.6 mm

10 mm

11.
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_______________?

1500 m

1505 m

1475 m

1485 m

Pick up the incorrect statement from the following?

12.
The underground sources of water, is from______________?

Pick up the incorrect statement from the following?

wells

springs

infiltration wells

storage reservoirs

none of these

13.
According to IS : 1172-1963, a minimum of 135 litres of water capita per day, is required for________________?

Boarding schools

Nurses home and medical quarters

Hostels

All the above

14.
The factor affecting per capita demand, is___________________?

Size of the city

Climatic conditions

Pressure in water mains

Cost of water

All the above

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