Discharge capacity of reciprocating pump & centrifugal pump

Q.  Discharge capacity of the reciprocating pump is __________ that of the centrifugal pump.
- Published on 16 Sep 15

a. higher than
b. lower than
c. same as
d. unpredictable

ANSWER: lower than

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    Discussion

  • Pankaj   -Posted on 14 Oct 15
    At a fixed inlet size and casing, a centrifugal pump does not have fixed volume. Increasing the diameter of the impeller or the rotational speed will lead to increased head and increased flow rate.

    Therefore, a centrifugal pump has large discharge capacity than that of the reciprocating pump. But both the pumps have their own applicable advantages.

    Centrifugal pump is used where high flow rate is required but high pressure is not required.

    Reciprocating pump is used where high pressure or high capability of overcoming the resistance to flow is required.

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