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.
A thyristor has its gate current zero. To start conduction the forward voltage must exceed
Discuss
Answer: (b).forward breakover voltage
Q152.
Assertion (A): Snubber circuit has an RC series circuit in parallel with SCR

Reason (R): Voltage across a capacitor can not change instantaneously.
Discuss
Answer: (a).Both A and R are correct and R is correct explanation of A
Q153.
In dielectric heating, the thyristor circuits consist of
Discuss
Answer: (d).rectifier-inverter combination
Q154.
On load tap changer using thyristors can have a maximum of two taps.
Discuss
Answer: (b).False
Q155.
Assertion (A): A cycloconverter may be line commutated or forced commutated

Reason (R): A step up cycloconverter requires forced commutation.
Discuss
Answer: (a).Both A and R are correct and R is correct explanation of A
Q156.
When thyristors are connected in series and parallel, it may be necessary to have :
Discuss
Answer: (c).both current and voltage derating
Q157.
A single phase half wave regulator uses
Discuss
Answer: (c).1 diode and 1 thyristor
Discuss
Answer: (b).as a trigger switch for SCR
Q159.
An SCR has a turn on time of 4 ฮผs. The gate pulse should have a duration of about
Discuss
Answer: (b).5 ฮผs
Q160.
In a multiphase chopper, the different choppers operate in
Discuss
Answer: (b).parallel and one at a time