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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Discuss
Answer: (b).forced commutation
Q152.
In a single phase full wave regulator feeding R-L load, the minimum firing angle can be zero.
Discuss
Answer: (a).True
Q153.
An RC snubber circuit is used to protect a thyristor against :
Discuss
Answer: (c).switching transients
Q154.
A DIAC has two terminals, anode and cathode.
Discuss
Answer: (b).False
Q155.
A single phase semiconverter has a freewheeling diode. If the firing angle is ฮฑ and the load is purely resistive, the periods of conduction and freewheeling respectively are
Discuss
Answer: (a).ฯ€ - ฮฑ and 0
Discuss
Answer: (a).12 pulse converters
Q157.
A single phase semiconverter is feeding a highly inductive load. The circuit has a freewheeling diode across the load and firing angle is ฮฑ. During one cycle of input voltage, the total duration of conduction of freewheeling diode is
Discuss
Answer: (b).2 ฮฑ
Q158.
During forward blocking state of SCR, the voltage and current respectively are
Discuss
Answer: (c).high and low
Q159.
In a 3 phase full converter the average load current is 150 A. The average thyristor current is
Discuss
Answer: (c).50 A
Q160.
The two modes of operation of three phase bridge inverters are known as
Discuss
Answer: (c).120° mode and 180° mode