Power Electronics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Power Electronics, a fundamental topic in the field of Electronics and Communication Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Power Electronics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Power Electronics mcq questions that explore various aspects of Power Electronics problems. Each MCQ is crafted to challenge your understanding of Power Electronics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Electronics and Communication Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Power Electronics MCQs are your pathway to success in mastering this essential Electronics and Communication Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Power Electronics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Power Electronics knowledge to the test? Let's get started with our carefully curated MCQs!

Power Electronics MCQs | Page 16 of 42

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Q151.
Assertion (A): An ac regulator uses natural commutation

Reason (R): An ac regulator can be used for static on load tap changing of transformer.
Discuss
Answer: (b).Both A and R correct but R is not correct explanation of A
Q152.
When a UJT is used as a relaxation oscillator the current should be
Discuss
Answer: (c).more than Ip but less than Iv
Q153.
In auxiliary commutated chopper, the charging and discharging time of capacitor
Discuss
Answer: (b).depend on load current
Q154.
Which chopper circuit uses saturable reactor?
Discuss
Answer: (c).Morgan chopper
Q155.
A single phase full bridge inverter for R-L loads needs
Discuss
Answer: (b).4 thyristors and 4 diodes
Discuss
Answer: (b).high harmonic content
Q157.
Thyristors connected in series need static and dynamic stabilizing circuits.
Discuss
Answer: (a).True
Q158.
In a controlled rectifier a freewheeling diode is necessary if the load is
Discuss
Answer: (a).inductive
Q159.
For an illumination control circuit it is advisable to use a matched TRIAC-DIAC pair.
Discuss
Answer: (a).True
Discuss
Answer: (a).the commutating elements carry full load current