The difference in the reservoir level and the lowest point of the wate – McqOptions

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1.	The difference in the reservoir level and the lowest point of the water mains is 180 m. The expected pressure due to water hammer is 7.5 kg/cm in a pressure conduit of diameter 1 m. Assuming the efficiency of the riveted joints of the pipe as 0.6 and minimum cover 3 mm for corrosion, the thickness of the pipe materials, is
A.	10 mm
B.	15 mm
C.	20 mm
D.	25 mm
E.	30 mm.
Answer» D. 25 mm

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