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Water Supply Engineering

Water Supply Engineering
Turbidity of raw water is a measure of

Acidity of water
Suspended solids
None of these
O.D

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Water Supply Engineering
Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be

15
5
10
nil

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Water Supply Engineering
For determining the velocity of flow of underground water, the most commonly used non-empirical formula is

Darcy’s formula
Hazen’s formula
Lacy’s formula
Slichter’s formula

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Water Supply Engineering
Asbestos pipes are

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

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Water Supply Engineering
Aeration of water is done to remove

colour
odour
hardness
bacterias

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Water Supply Engineering
For the prediction of future population of a city, the factor to be considered, is

All listed here
Births
Deaths
Migrants

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