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EK-General : 2013/JUL/05 – 2014/OCT/07 – 2018/MAR/04
Question
Q4. (a) State the affinity laws for a centrifugal pump. (3)
(b) State the effects on the pump affinity laws of fitting a slightly smaller diameter impeller. (2)
(c) Explain, with the aid of a Head versus Flow diagram, why a two speed pump is preferable to throttling where high and low capacities are demanded for a large sea water circulating pump.(5)
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