Q. An RC snubber network used in BJT
✅ Correct Answer: (D)
All of these
Power Electronics MCQs | Page - 3
Dear candidates you will find MCQ questions of Power Electronics here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Q. In a 3 phase half wave rectifier, when firing angle is less than 90 degree, then the average dc output voltage becomes
✅ Correct Answer: (A)
Positive
Q. In dual converters,
✅ Correct Answer: (A)
Both rectifiers provides positive current to the load
Q. A single phase ac - dc converter is also known as
✅ Correct Answer: (A)
rectifier
Q. Anode of an operational SCR is
✅ Correct Answer: (A)
Always positive w.r.t cathode
Q. If the gate voltage of an SCR is removed, then the
✅ Correct Answer: (B)
anode current does not decrease at all
Q. In a single phase full wave rectifier, during blocking state the peak inverse voltage of diode is
✅ Correct Answer: (B)
2 V m
Q. In a full wave rectifier, the rectification ratio is approximately equal to
✅ Correct Answer: (C)
81%
Q. For power output higher than 15 kW, the suitable rectifier is
✅ Correct Answer: (D)
Only (b) and (c)
Q. The sum of all phase current in a star connected primary winding with no neutral connection is equal to
✅ Correct Answer: (D)
Zero at all times
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