Water Supply Engineering MCQ Questions & Answers | Civil Engineering Page-2 section-1

11.
For the prediction of future population of a city, the factor to be considered, is

A. Births

B. Deaths

C. Migrants

D. All the above

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12.
The factor affecting per capita demand, is

A. size of the city

B. climatic conditions

C. cost of water

D. all the above

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13.
By boiling water, hardness can be removed if it is due to

A. calcium sulphate

B. magnesium sulphate

C. calcium nitrate

D. calcium bicarbonate

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14.
In slow sland filters, the turbidity of raw water can be removed only up to

A. 60 mg/litre

B. 75 mg/litre

C. 100 gm/litre

D. 150 mg/litre

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15.
When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied

A. By pumping system

B. By gravitational system

C. Both (A) and (B)

D. All the above

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16.
To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36,00,000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2$$\sqrt {\text{Q}} ,$$ the water horse power of the pump is

A. 400

B. 450

C. 500

D. 600

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17.
The process of passing water through beds of granular materials, is called

A. Screening

B. Sedimentation

C. Filtration

D. None of these

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18.
Surcharge storage zone of a reservoir, is

A. Below dead storage

B. Between dead storage and useful storage

C. Above useful storage

D. Also known as valley storage

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19.
Pick up the correct statement from the following:

A. Water with hardness up to 75 ppm is considered soft

B. Water with hardness more than 200 ppm is considered hard

C. Water needed for laundries should contain hardness less than 75 ppm

D. All the above

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20.
Surge tanks are used

A. for storage water

B. to increase the velocity in a pipeline

C. as overflow valves

D. to guard against water hammer

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Water Supply Engineering MCQ Questions & Answers | Civil Engineering

11. For the prediction of future population of a city, the factor to be considered, is

Answer & Solution

12. The factor affecting per capita demand, is

Answer & Solution

13. By boiling water, hardness can be removed if it is due to

Answer & Solution

14. In slow sland filters, the turbidity of raw water can be removed only up to

Answer & Solution

15. When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied

Answer & Solution

Answer & Solution

17. The process of passing water through beds of granular materials, is called

Answer & Solution

18. Surcharge storage zone of a reservoir, is

Answer & Solution

19. Pick up the correct statement from the following:

Answer & Solution

20. Surge tanks are used

Answer & Solution

11.
For the prediction of future population of a city, the factor to be considered, is

12.
The factor affecting per capita demand, is

13.
By boiling water, hardness can be removed if it is due to

14.
In slow sland filters, the turbidity of raw water can be removed only up to

15.
When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied

17.
The process of passing water through beds of granular materials, is called

18.
Surcharge storage zone of a reservoir, is

19.
Pick up the correct statement from the following:

20.
Surge tanks are used