M

Mr. Dubey • 52.30K Points
Coach 

Q. decelerates the flow, what increases?

(A) pressure
(B) temperature
(C) volume
(D) flow rate
Correct : Option (A)

Explanation: 
 when the casing in a centrifugal pump decelerates the flow, pressure in the turbine increases. the diffuser helps this happen. the shape of the diffuser passing present in the centrifugal pump is doughnut shaped.

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