SSC JE Civil Engineering 2015 Solved Paper

Question : 109 of 200

Marks: +1, -0

The specific speed of a pump is defined as the speed of a unit of such a size that it discharges

Solution:

N_s={N√Q}/{H^3\/4}

Q = Discharge, H = Head

N_S =

Specific Speed
for unit Q and unit H
Q = 1, H = 1

N_s={N√1}/1^{3\/4}=N

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