Fluid Mechanics

Q1: 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

ANS:A - Q∝N : H∝N2 : P∝N3

The general relationship between speed NNN, head HHH, power PPP, and discharge QQQ for a centrifugal pump is: Q ∝ N H ∝ N² **P ∝ N³



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