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Electrical Engineering MCQs Set 2

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Electrical engineering MCQs for job test and interview preparation, freshers, students, competitive examinations, and more. Electrical Machines, Power Electronics, Electrical Measurement & Units, Utilization of Electrical Energy, Basic Electrical Engineering, Electrical Installation, Power Systems, Testing & Maintenance of Electrical Equipment, and so on are some of the topics covered in these multiple-choice questions.

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Electrical Engineering MCQS Set 2

Electrical engineering MCQs for job test and interview preparation, freshers, students, competitive examinations, and more. Electrical Machines, Power Electronics, Electrical Measurement & Units, Utilization of Electrical Energy, Basic Electrical Engineering, Electrical Installation, Power Systems, Testing & Maintenance of Electrical Equipment, and so on are some of the topics covered in these multiple-choice questions.

1 / 20

After proper turn on of thyristor____________?

2 / 20

What may happen high dV / dt____________?

3 / 20

What happen due to high di / dt____________?

4 / 20

Which of the following is used in heat sink_____________?

5 / 20

Materials used in heat sink should have_____________?

6 / 20

A thyristor can termed as__________?

7 / 20

How can we protect SCR from thermal conditions _____________?

8 / 20

Compared to transistor, _________ have lower on state conduction losses and higher power handling capability?

9 / 20

SCR will be turned off when anode current is_______________?

10 / 20

COOLMOS device can be used in application up to power range of___________?

11 / 20

The capacitance of reversed bised junction J2 in a thyristor is CJ2 = 20 pF and can be assumed to be independant of the off state voltage. The limiting value of the charging current to turn on the thyristor is 16 mA. What is the critical value of dv/dt?

12 / 20

Which of the following is used in SCR to protect from high dV / dt__________________?

13 / 20

IGBT combines the advantages of_____________?

14 / 20

Why resistor is used in Snubber circuit_________________ ?

15 / 20

Which one is most suitable power device for high frequency (>100 KHz) switching application?

16 / 20

Thermal voltage VT can be given by____________?

17 / 20

What is used to protect a thyristor from high di / dt conditions__________?

18 / 20

Gate circuit or triggering circuit of a thyristor is

19 / 20

Snubber circuit is used with SCR_________________?

20 / 20

Thyristor is nothing but a____________?

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