Explore topic-wise MCQs in Power Electronics.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Power Electronics knowledge and support exam preparation. Choose a topic below to get started.

1.

For the third quadrant operation of type E chopper

A. CH1 is on
B. CH2 and CH1 are on
C. CH3 is on
D. None of the mentioned
Answer» E.
Discussion
2.

The load emf E must be reversed for

A. first and second quadrant operation
B. third quadrant operation
C. fourth quadrant operation
D. both third and fourth quadrant operation
Answer» E.
Discussion
3.

For a type E chopper operating in the first quadrant, find the expression for average output voltage.

A. Vs
B. E – Ldi/dt
C. 0
D. E + Ldi/dt
Answer» B. E – Ldi/dt
Discussion
4.

What is the expression for load voltage when the chopper is operated in the second quadrant?

A. Vs
B. E
C. 0
D. E + Ldi/dt
Answer» E.
Discussion
5.

For a type E chopper, when CH2 is first on and then switched off then the

A. power flows from source to load
B. power flows from load to source
C. load is short circuited
D. none of the mentioned
Answer» C. load is short circuited
Discussion
6.

For the second quadrant operation of type E chopper

A. Only CH2 is on
B. CH1 and CH2 is on
C. CH2 and CH3 is on
D. CH2 and CH4 is on
Answer» E.
Discussion
7.

For the first quadrant operation of type E chopper

A. Only CH1 is on
B. CH1 and CH2 is on
C. CH1 and CH3 is on
D. CH1 and CH4 is on
Answer» E.
Discussion
8.

A type C chopper can operate in

A. Ist and IInd quadrants
B. IInd and IIIrd quadrants
C. Ist, IInd and IIIrd quadrants
D. all the four quadrants
Answer» E.
Discussion
9.

A type C chopper consists of __________ diodes and _________ switches in anti-parallel.

A. 2, 2
B. 3, 3
C. 4, 4
D. 3, 4
Answer» D. 3, 4
Discussion
10.

Identify the given circuit

A. type D chopper
B. two quadrant type C chopper
C. type E chopper
D. type F chopper
Answer» D. type F chopper
Discussion