Hydroelectric Power Plant MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Hydroelectric Power Plant, a fundamental topic in the field of Power Plant Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Hydroelectric Power Plant MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Hydroelectric Power Plant mcq questions that explore various aspects of Hydroelectric Power Plant problems. Each MCQ is crafted to challenge your understanding of Hydroelectric Power Plant principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Power Plant Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Hydroelectric Power Plant MCQs are your pathway to success in mastering this essential Power Plant Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Hydroelectric Power Plant. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Hydroelectric Power Plant knowledge to the test? Let's get started with our carefully curated MCQs!

Hydroelectric Power Plant MCQs | Page 3 of 4

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Q21.
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.

overall efficiency

b.

volumetric efficiency

c.

manometric efficiency

d.

mechanical efficiency

Discuss
Answer: (b).volumetric efficiency
Q22.
The working of which of the following hydraulic units is based on Pascal’s law?

a.

Hydraulic coupling

b.

Air lift pump

c.

Jet pump

d.

Hydraulic press

Discuss
Answer: (d).Hydraulic press
Q23.
Which of the following pump is generally used to pump highly viscous fluid?

a.

Air lift pump

b.

Centrifugal pump

c.

Screw pump

d.

Reciprocating pump

Discuss
Answer: (a).Air lift pump
Q24.
The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, will be?

a.

40%

b.

50%

c.

60%

d.

80%

Discuss
Answer: (b).50%
Q25.
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is?

a.

84.8%

b.

74.8%

c.

64.8%

d.

54.8%

Discuss
Answer: (a).84.8%
Q26.
A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is?

a.

0.26

b.

0.36

c.

0.46

d.

0.56

Discuss
Answer: (d).0.56
Q27.
The cups at the periphery of the Pelton wheel are __________

a.

equiangular

b.

equidistant

c.

equimolar

d.

none of the mentioned

Discuss
Answer: (b).equidistant
Q28.
The maximum number of jets, generally, employed in an impulse turbine without jet interference are __________

a.

2

b.

6

c.

7

d.

5

Discuss
Answer: (a).2
Q29.
A Francis turbine is used when the available head of water is?

a.

0 to 25 m

b.

25 to 250 m

c.

> 250 m

d.

none of the mentioned

Discuss
Answer: (b).25 to 250 m
Q30.
The overall efficiency of a reaction turbine is the ratio of __________

a.

actual work available at the turbine to the energy imparted to the wheel

b.

power produced by the turbine to the energy actually supplied by the turbine

c.

workdone on the wheel to the energy (or head of water) actually supplied to the turbine

d.

none of the mentioned

Discuss
Answer: (b).power produced by the turbine to the energy actually supplied by the turbine
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