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GATE Latest Exam Pattern - GATE Sample Question with Solutions Page 5

(#M40156959) GATE QUESTION Engineering HM Keep an EYE

A reciprocating pump is suitable for less discharge and higher heads.


A. True
B. False

Asked In Gate Jaspalsingh Parmar (9 years ago)

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(#M40156958) GATE QUESTION Engineering HM Keep an EYE

The impeller of a centrifugal pump may have


A. volute casing
B. volute casing with guide blades
C. vortex casing
D. any one of these

Asked In Gate Jaspalsingh Parmar (9 years ago)

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(#M40156957) GATE QUESTION Engineering HM Keep an EYE

The ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as


A. manometric efficiency
B. mechanical efficiency
C. overall efficiency
D. volumetric efficiency

Asked In Gate Jaspalsingh Parmar (9 years ago)

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(#M40156956) GATE QUESTION Engineering HM Keep an EYE

The breast water wheels are those in which the wheel runs partly by the weight of water and partly by the impulse of water.


A. True
B. False

Asked In Gate Jaspalsingh Parmar (9 years ago)

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(#M40156955) GATE QUESTION Engineering HM Keep an EYE

The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, is


A. 40%
B. 50%
C. 60%
D. 80%

Asked In Gate Jaspalsingh Parmar (9 years ago)

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(#M40156954) GATE QUESTION Engineering HM Keep an EYE

The capacity of a hydraulic accumulator is generally specified as the maximum amount of energy stored.


A. True
B. False

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(#M40156953) GATE QUESTION Engineering HM Keep an EYE

In an impulse turbine, the jet of water impinges on the bucket with a low velocity and after flowing over the vanes, leaves with a high velocity.


A. True
B. False

Asked In Gate Jaspalsingh Parmar (9 years ago)

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(#M40156952) GATE QUESTION Engineering HM Keep an EYE

Manometric head, in case of a centrifugal pump, is equal to


A. Suction lift + Loss of head in suction pipe due to friction + Delivery lift + Loss of head in delivery pipe due to friction + Velocity head in the delivery pipe
B. Workdone per kN of water - Losses within the impeller
C. Energy per kN at outlet of impeller - Energy per kN at inlet of impeller
D. all of the above

Asked In Gate Jaspalsingh Parmar (9 years ago)

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(#M40156951) GATE QUESTION Engineering HM Keep an EYE

In a reaction turbine, the pressure head of water, while flowing over the vanes, is converted into kinetic head before leaving the wheel.


A. Agree
B. Disagree

Asked In Gate Jaspalsingh Parmar (9 years ago)

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(#M40156950) GATE QUESTION Engineering HM Keep an EYE

For centrifugal pump impeller, the maximum value of the vane exit angle is


A. 10° to 15°
B. 15° to 20°
C. 20° to 25°
D. 25° to 30°

Asked In Gate Jaspalsingh Parmar (9 years ago)

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