The general relationship between speed N, head H, power P and discharge Q for a centrifugal pump is_________________?
(A) Q∝N : H∝N2 : P∝N3
(B) Q∝N2 : H∝N3 : P∝N
(C) Q∝N : H∝N3 : P∝N2
(D) Q∝N3 : H∝N : P∝N2
The general relationship between speed N, head H, power P and discharge Q for a centrifugal pump is_________________?
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