Power required (in watts) to drive a centrifugal pump is (where Hm = – McqOptions

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1.	Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w = Specific weight in N/m3, Q = Discharge of the pump in m3/s, and ηo = Overall efficiency of the pump)
A.	(w Hm) / (Q × ηo)
B.	(w Hm Q) / ηo
C.	(w Q) / (Hm × ηo)
D.	(w Q ηo) / Hm
Answer» C. (w Q) / (Hm × ηo)

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