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Choppers MCQ Questions And Answers - Power Electronics

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

Question 1

A chopper uses high speed to ____________ from a source load.

A. connect
B. disconnect
C. terminate
D. connect and disconnect

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Question 2

Choppers are mostly applied in?

A. electric cars
B. DC motor regulators
C. Both A and B
D. None of the above

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Question 3

In which chopper average voltage output (Vo) in a step up chopper is greater than the voltage input (Vs)?

A. Step Down Chopper
B. Step Up chopper
C. Step Up/Down Chopper
D. All of the above

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Question 4

In Step Up Chopper, averagevoltageoutput is ____________ when chopper is switched ON.

A. 0
B. Negative
C. Infinite
D. Positive

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Question 5

Step Down Chopper is also known as a buck converter

C. Can be true or false
D. Can not say

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Question 6

In the ___________ type of chopper, two stage conversions takes place.

B. AC link
C. DC link
D. None of the above

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Question 7

In AC link chopper, DC is converter to AC than stepped up/down than again AC to DC conversation takes place.

A. 25V
B. 50V
C. 75V
D. 100V

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Question 8

A chopper may be thought as a

A. Inverter with DC input
B. DC equivalent of an AC transformer
C. Diode rectifier
D. DC equivalent of an induction motor

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Question 9

If a step up chopper’s switch is always kept off then (ideally)

A. Vo = 0
B. Vo = infinite
C. Vo = Vs
D. Vo > Vs

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Question 10

In this step down chopper, the average voltage output VO is less than the input voltage VS.

A. Yes
B. No
C. Can be yes or no
D. Can not say

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