Explore topic-wise MCQs in Power Electronics.

This section includes 5 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.

IN_A_B-2_TYPE_FULL_CONTROLLED_BRIDGE_CONVERTER?$

A. one SCR conducts at a time
B. two SCRs conduct at a time
C. three SCRs conduct at a time
D. four SCRs conduct at a time
Answer» C. three SCRs conduct at a time
Discussion
2.

A single phase full controlled bridge converter (B-2) use?

A. 4 SCRs and 2 diodes
B. 4 SCRs
C. 6 SCRs
D. 4 SCRs and 2 diodes
Answer» C. 6 SCRs
Discussion
3.

A single phase full-converter using R load is a _________ quadrant converter and that using an RL load without FD is a __________ quadrant converte?

A. one, one
B. two, one
C. one, two
D. two, two
Answer» D. two, two
Discussion
4.

A fully controlled converter uses

A. diodes only
B. thyristors only
C. both diodes and thyristors
D. none of the mentioned
Answer» C. both diodes and thyristors
Discussion
5.

Find the expression for the average value of the output voltage for the below given circuit. Consider the load current to be continuous, firing angle = α, transformer ration 1:1 and Vs = Vm sinωt.$

A. (Vm/π)cosα
B. (Vm/π)(1+cosα)
C. (2Vm/π)cosα
D. (2Vm/π)(1+cosα)
Answer» D. (2Vm/‚âà√¨‚àö√ë)(1+cos‚âà√≠¬¨¬±)
Discussion