• Electrical Engineering Reference

# 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

Question 2

Choppers are mostly applied in?

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

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

Question 4

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

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

Question 5

Step Down Chopper is also known as a buck converter

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

Question 6

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

A. AC-DC
D. None of the above

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

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

Question 9

If a step up chopperâ€™s switch is always kept off then (ideally)

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