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Water Supply Engineering

Water Supply Engineering
Mathamoglobinemia or blue baby disease is caused due to

Sulphides
Nitrates
Chlorides
Nitrites

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

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

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Water Supply Engineering
Corrosion of well pipes may not be reduced by

using screens having larger area of openings
reducing the flow velocity
reducing the draw down and the pumping rate
using thicker pipes

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Water Supply Engineering
In distribution pipes, drain valves are provided at

higher point
lower point
junction points
any where

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Water Supply Engineering
Acidity in water is caused due to

All the above.
Aluminium sulphate
Free CO₂
Mineral acids

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Water Supply Engineering
Turbidity of raw water is a measure of

Suspended solids
O.D
None of these
Acidity of water

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