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Water Supply Engineering

Water Supply Engineering
In pressure supply mains, water hammer pressure is reduced by providing

Air valves
Pressure relief valves
Sluice valves
None of these

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Water Supply Engineering
If the chosen diameter of a pipe, is less than the economical diameter

Cost of pipe will be less
Head loss will be high
All listed here
Cost of pumping will be more than saving

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Water Supply Engineering
The factor affecting per capita demand, is

climatic conditions
All listed here
cost of water
size of the city

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Water Supply Engineering
Surge tanks are used

to increase the velocity in a pipeline
as overflow valves
for storage water
to guard against water hammer

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Water Supply Engineering
Surcharge storage zone of a reservoir, is

Below dead storage
Above useful storage
Also known as valley storage
Between dead storage and useful storage

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

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

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