Power Electronics 2 Electrical Engineering MCQ Practice Quiz 5

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Power Electronics 2 Electrical Engineering Practice Quiz 5

1 / 25

The opposite of susceptibility is____?

 

2 / 25

A step – down choppers can be used____?

3 / 25

The ac voltage controller can be used for____?

4 / 25

The phase angle of gate signal in TRIAC can be shifted by using____?

5 / 25

In the SPWM, the modulating signal____?

6 / 25

The transfer function of PWM is generally developed in_____?

7 / 25

The Graetz bridge makes excellent use of_____?

8 / 25

In constant frequency PWM, at perturbation the amplitude of the sinusoidal component is____?

9 / 25

If the firing angle becomes negative, then the rectifier begins to work as______?

10 / 25

In a 3 phase half wave rectifier, when firing angle is less than 90 degree, then the average dc output voltage becomes____?

11 / 25

In a square – wave operation of 3 phase CSIS, the power values are on for_____?

12 / 25

An SCR can be used_____?

13 / 25

With gate open, the maximum anode current at which SCR is turned off from ON condition is called_____?

14 / 25

Bidirectional semiconductor device____?

15 / 25

A full wave rectifier with resistive load produces____?

16 / 25

An ideal diode is____?

17 / 25

The input current waveform of a bridge controlled rectifier when the load is perfectly filtered is_____?

18 / 25

Harmonics in 3 phase inverters can be reduced by using_____?

19 / 25

The maximum firing angle in the half wave controlled regulator is_____?

20 / 25

In a phase controlled 3 phase ac voltage controller, the harmonic present is____?

21 / 25

The power MOSFET device is a_____?

22 / 25

The conduction losses in IGBT is____?

23 / 25

In rectifiers, load current flow is_____?

24 / 25

Single phase VSI are mainly used_____?

25 / 25

The man made noise sources is / are____?

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