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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Test  >  Power Electronics  >  Test: Gating Circuits - Electrical Engineering (EE) MCQ

Gating Circuits - Free MCQ Practice Test with solutions, GATE EE Power


MCQ Practice Test & Solutions: Test: Gating Circuits (10 Questions)

You can prepare effectively for Electrical Engineering (EE) Power Electronics with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Gating Circuits". These 10 questions have been designed by the experts with the latest curriculum of Electrical Engineering (EE) 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 10 minutes
  • - Number of Questions: 10

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Test: Gating Circuits - Question 1
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 If the RC firing circuit used for firing an SCR is to be used to fire a TRIAC then

Detailed Solution: Question 1

The TRIAC is a bidirectional SCR, hence it will need gating in both the directions. This can be achieved by replacing the diode by a DIAC (bidirectional diode).

Test: Gating Circuits - Question 2
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In the thyristor gating circuit, the supply to the pulse amplifier is provided by the

Detailed Solution: Question 2

Isolation transformer provides the supply to the amplifier and also provides the necessary isolation for the load and triggering circuit.

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Test: Gating Circuits - Question 3
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In the thyristor gating circuit, the ZCD is used to

Detailed Solution: Question 3

It is used to convert the AC synchronizing input voltage into ramp voltage & synchronizes it with the zero crossing of the AC supply.

Test: Gating Circuits - Question 4
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 The firing-angle delay is

Detailed Solution: Question 4

If Ec is lowered the firing angle decreases & vice-verse.

Test: Gating Circuits - Question 5
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The pulse gating is not suitable of

Detailed Solution: Question 5

It is not suitable of RL load because initiation of SCR conduction is not well defined in these types of loads.

Test: Gating Circuits - Question 6
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In case of a cosine firing scheme, __________ is used to get a cosine wave

Detailed Solution: Question 6

The Sync. Transformer is connected to a integrator to obtain a cosine-wave.

Test: Gating Circuits - Question 7
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If the gating circuits generator negative pulses, then those can be removed by using

Detailed Solution: Question 7

The clippers can be used to clip the negative part

Test: Gating Circuits - Question 8
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The improved version of the UJT oscillator triggering circuit is the

Detailed Solution: Question 8

The ramp & pedal triggering is the improved version of the UJT oscillator triggering circuit.

Test: Gating Circuits - Question 9
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RB1 = 3 kΩ & RB2 = 6 kΩ. Find the intrinsic stand-off ratio (η) of the UJT.

Detailed Solution: Question 9

η = RB1/(RB1+RB1).

Test: Gating Circuits - Question 10
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The decaying factor in the wave shape of the output pulses from the pulse transformer is its

Detailed Solution: Question 10

L is the decaying factor in the waveform which emerge from the PT.

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About this Electrical Engineering (EE) Practice Test

This test contains 10 MCQs on Gating Circuits with detailed solutions for each question. It is part of the Power Electronics course on EduRev, designed to align with the current Electrical Engineering (EE) syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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If you found this Gating Circuits MCQ Test helpful, you can further enhance your Electrical Engineering (EE) preparation with in-depth courses on EduRev, for all the subjects and topics available in Power Electronics course. The course offers:
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