Fluid Mechanics and Hydraulic Machines (3141906) MCQs

MCQs of Centrifugal Pumps

Showing 31 to 35 out of 35 Questions
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31.
If pump NPSH requirements are not satisfied,
(a) it will deliver very low discharge
(b) it will be cavitated
(c) efficiency will be low
(d) no flow will take place
Answer:

Option (b)

32.
To avoid cavitation in the centrifugal pump
(a) suction pressure should be low
(b) delivery pressure should be low
(c) suction pressure should be high
(d) delivery pressure should be high
Answer:

Option (c)

33.
Multistage centrifugal pumps are used to obtain
(a) high discharge
(b) high head
(c) high efficiency
(d) high head and high discharge
Answer:

Option (b)

34.
Low specific speed of a pump implies it is
(a) centrifugal pump
(b) axial flow pump
(c) mixed flow pump
(d) none of the above
Answer:

Option (a)

35.
The discharge capacity of the reciprocating pump is __________ that of the centrifugal pump.
(a) higher than
(b) lower than
(c) same as
(d) unpredictable
Answer:

Option (b)

Showing 31 to 35 out of 35 Questions
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