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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

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

2 / 20

Which of the following is used in heat sink_____________?

3 / 20

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

4 / 20

Thermal voltage VT can be given by____________?

5 / 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?

6 / 20

What may happen high dV / dt____________?

7 / 20

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

8 / 20

SCR will be turned off when anode current is_______________?

9 / 20

A thyristor can termed as__________?

10 / 20

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

11 / 20

What happen due to high di / dt____________?

12 / 20

Thyristor is nothing but a____________?

13 / 20

Materials used in heat sink should have_____________?

14 / 20

Why resistor is used in Snubber circuit_________________ ?

15 / 20

Gate circuit or triggering circuit of a thyristor is

16 / 20

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

17 / 20

How can we protect SCR from thermal conditions _____________?

18 / 20

IGBT combines the advantages of_____________?

19 / 20

Snubber circuit is used with SCR_________________?

20 / 20

After proper turn on of thyristor____________?

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