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Power Electronics MCQ

SEMICONDUCTOR THEORY / DIODES & TRANSISTORS / OP-AMPS / ANALOGUE CIRCUITS / DIGITAL CIRCUITS / POWER ELECTRONICS / INTRUMENTATIONS

MCQTrip.com will test your knowledge of power electronics, including power devices and circuits, with our online multiple-choice questions. Get instant feedback and track your progress. Challenge yourself to get the highest score. Twenty (20) MCQ questions from our test bank will be randomly shown for every attempt. Passing mark for this test is 70%.

Objectives: To provide a comprehensive overview of power electronics and to test readers’ knowledge of the subject with multiple choice questions.

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Which of the following PNPN devices does not have a gate terminal?

For thyristors, pulse triggering is preferred to triggering because

Power MOSFET is a

In its application, an SUS behaves in the same way as

When transistors are used in series or parallel, a snubber circuit is used to

With gate open, a SCR can be turned-on by making supply voltage

As compared to UJT, SUS

A conducting SCR can be opened by reducing __________ to zero.

Optocouplers combine

In a GTO, anode current begins to fall when gate current

When a UJT is used for triggering of an SCR, the waveshape of the voltage is a

A device that does not exhibit negative resistance characteristic is

In a UJT, maximum value of charging resistance is associated with

Derating factors for parallel connection of thyristors are normally in the range

Equalising circuits are provided across each SCR in series operation to pro- vide uniform

In a GTO, anode current begins to fall when gate current

Which of the following conditions is necessary for triggering system for thyristors?

In a SCR circuit, the angle of conduction can be changed by changing

If gate current is increased, the anode-cathode voltage at which SCR closes is

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