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Civil Engineering - Water Supply Engineering

Exercise : Water Supply Engineering - Section 2
11.
Pick up the correct statement from the following :
The internal pressure within a pipe, is caused due to water head and hammer pressure
The internal pressure in a pipe running full is equal to vertical ordinate between hydraulic gradient line and centre of the pipe
In pressure pipes with water at rest, the pressure is equal to water head
Sudden closure of a valve, causes the water hammer pressure
All the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Surface water is obtained from
well
springs
artesian well
rain.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Hardness of water is caused due to
calcium sulphate
magnesium sulphate
calcium nitrates
calcium bicarbonates
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Flow through period, in sedimentation tanks, is
equal to detention period
more than detention period
less than detention period
detention period divided by displacement efficiency
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Normal values of overflow rate for plain sedimentation tank, is
250 to 500 litres/hr/m2
500 to 750 litres/hr/m2
750 to 1000 litres/hr/m2
1000 to 1250 litres/hr/m2.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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