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Priming is necessary in

Q.  
Priming is necessary in


Answer & Explanation

Priming is done in centrifugal pump operation in which suction pipe, casing and portion up to delivery pipe are completely filled with the same liquid to be lifted such that no air pocket is left and then the delivery valve is closed.

Thus correct option is: B.

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A centrifugal pump gives maximum efficiency when its blades are

A. Bent forward

B. End backward

C. Bent backward

D. Wave shaped


Answer & Explanation

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Why is a minimum of Net Positive Suction Head (NPSH) required for a hydraulic pump?

A. To prevent cavitation

B. To increase discharge

C. To increase suction head

D. To increase efficiency


Answer & Explanation
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