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HR Interview Questions and Best Answer Page 4

(#M40156925) HR INTERVIEW QUESTION Engineering HM Keep an EYE

In a reaction turbine, the draft tube is used


A. to run the turbine full
B. to prevent air to enter the turbine
C. to increase the head of water by an amount equal to the height of the runner outlet above the tail race
D. to transport water to downstream

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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(#M40156924) HR INTERVIEW QUESTION Engineering HM Keep an EYE

Discharge of a centrifugal pump is (where N = Speed of the pump impeller)


A. directly proportional to N
B. inversely proportional to N
C. directly proportional to N2
D. inversely proportional to N2

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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(#M40156923) HR INTERVIEW QUESTION Engineering HM Keep an EYE

Geometric similarity is said to exist between the model and the prototype, if both of them


A. have identical velocities
B. are equal in size and shape
C. are identical in shape, but differ only in size
D. have identical forces

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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(#M40156922) HR INTERVIEW QUESTION Engineering HM Keep an EYE

The ratio of actual work available at the turbine to the energy imparted to the wheel is known as __________ efficiency.


A. hydraulic
B. mechanical
C. overall

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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(#M40156921) HR INTERVIEW QUESTION Engineering HM Keep an EYE

The static head of a centrifugal pump is equal to the __________ of suction head and delivery head.


A. product
B. difference
C. sum

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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(#M40156920) HR INTERVIEW QUESTION Engineering HM Keep an EYE

A Pelton wheel develops 1750 kW under a head of 100 metres while running at 200 r.p.m. and discharging 2500 litres of water per second. The unit power of the wheel is


A. 0.25 kW
B. 0.75 kW
C. 1.75 kW
D. 3.75 kW

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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(#M40156919) HR INTERVIEW QUESTION Engineering HM Keep an EYE

Discharge of a centrifugal pump is


A. directly proportional to diameter of its impeller
B. inversely proportional to diameter of its impeller
C. directly proportional to (diameter)2 of its impeller
D. inversely proportional to (diameter)2 of its impeller

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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(#M40156918) HR INTERVIEW QUESTION Engineering HM Keep an EYE

In a Kaplan turbine runner, the number of blades are generally between


A. 2 to 4
B. 4 to 8
C. 8 to l6
D. 16 to 24

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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(#M40156917) HR INTERVIEW QUESTION Engineering HM Keep an EYE

The overshot water wheels are those in which the wheel runs entirely by the __________ of water.


A. weight
B. impulse

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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(#M40156916) HR INTERVIEW QUESTION Engineering HM Keep an EYE

The mechanical efficiency of an impulse turbine is


A. ratio of the actual power produced by the turbine to the energy actually supplied by the turbine
B. ratio of the actual work available at the turbine to the energy imparted to the wheel
C. ratio of the Work done on the wheel to the energy of the jet
D. none of the above

Asked In HR Interview Jaspalsingh Parmar (9 years ago)

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