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Turbines Types & Selection MCQ Questions & Answers

Turbines Types & Selection MCQs : This section focuses on the "Turbines Types & Selection". These Multiple Choice Questions (MCQs) should be practiced to improve the Turbines Types & Selection skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

A draft tube is essentially required for impulse type turbines.

A. True
B. False

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Question 2

An impulse turbine is essentially a __________________

A. low-speed turbine and is used for high heads
B. low-speed turbine and is used for low heads
C. high-speed turbine and is used for high heads
D. high-speed turbine and is used for low heads

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Question 3

An impulse turbine like a Pelton’s turbine is __________________________

A. an open body exposed to the atmosphere
B. a closed body not exposed to the atmosphere
C. a partially open and partially closed body
D. depends on the design requirements

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Question 4

For a hydropower plant having 150 m head of stored water behind the dam. The water in the reservoir is clear and load on the powerhouse is not likely to fluctuate much. Which type of turbine will be suitable for the same?

A. Pelton turbine
B. Francis turbine
C. Kaplan turbine
D. Propeller turbine

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Question 5

For a hydropower plant working on 150 m head, the water is sandy and the load on the plant is highly variable. Which type of turbine will generally be recommended?

A. Pelton Turbine
B. Francis turbine
C. Kaplan turbine
D. Propeller turbine

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Question 6

If the specific speed in revolution per minute of a turbine is in between 60 to 300, the type of the turbine is ________________

A. Pelton turbine
B. Francis turbine
C. Propeller turbine
D. Kaplan turbine

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Question 7

If two identical pumps each capable to deliver a discharge Q against a head H are connected ___________________________

A. in parallel, the resulting discharge is 2Q against a head H
B. in parallel, the resulting discharge is Q against a head of 2H
C. in series, the resulting discharge is 2Q against a head H
D. in series, the resulting discharge is Q against a head 2H

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Question 8

In a Francis turbine, the water flows through a closed draft tube.

A. True
B. False

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Question 9

Kaplan turbines are found to be more versatile and costly in their initial cost as compared to propeller turbines.

A. True
B. False

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Question 10

Pick the correct choice of turbine required to generate 10,000 HP under a head of 81 m while working at a speed of 500 rpm.

A. Pelton
B. Kaplan
C. Bulb
D. Francis

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Question 11

The Pumps in series operation allow the head to increase and the pumps in parallel operation increase the flow rate.

A. True
B. False

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Question 12

Which of the following is an example of an impulse turbine?

A. Pelton turbine
B. Francis turbine
C. Kaplan turbine
D. Propeller turbine

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Question 13

Which of the following is turbine is used for medium heads ranging from 25 to 150 meters?

A. Pelton turbine
B. Kaplan turbine
C. Francis turbine
D. Propeller turbine

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