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Water Supply Engineering

Water Supply Engineering
The maximum depth of sedimentation tanks is limited to

5 m
4 m
3 m
6 m

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Water Supply Engineering
If four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is

3880 kilo litres
4880 kilo litres
1880 kilo litres
2880 kilo litres

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Water Supply Engineering
The process of passing water through beds of granular materials, is called

None of these
Sedimentation
Filtration
Screening

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Water Supply Engineering
Asbestos pipes are

very much smooth and hydraulically efficient
highly resistant to corrosion
All listed here
light in weight and easy to transport

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Water Supply Engineering
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 √Q, the water horse power of the pump is

500
450
600
400

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Water Supply Engineering
When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied

By gravitational system
Both (A) and (B)
By pumping system
All listed here

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