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Electrical Engineering Quiz 38

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Electrical Engineering Quiz 38

1 / 50

Transfer function of a system is used to calculate which of the following ?

2 / 50

If the input to a differentiating circuit is a saw-tooth wave, then output will be _____________?

3 / 50

If the fault occurs near the impedance relay, the VII ratio will be____________?

4 / 50

The speed of a D.C. shunt motor more than its full-load speed can be obtained by_____________?

5 / 50

The direction of induced e.m.f. can be found by_____________?

6 / 50

The strength of a semiconductor crystal comes from______________?

7 / 50

The filament of an electric bulb is made of______________?

8 / 50

The co-efficient of coupling between two air core coils depends on____________?

9 / 50

An electrolytic capacitor can be used for_____________?

10 / 50

If in a synchronous motor, driving a given mechanical load and drawing current at a leading power factor from constant voltage supply its field excitation is increased, its power factor

11 / 50

Typical range of thyristor turn OFF time is______________?

12 / 50

With forward bias to a pn junction , the width of depletion layer__________________?

13 / 50

A combination of synchronized leading edge and trailing edge modulation has also been used to control a____________?

14 / 50

The out put voltage of a transformer is 3 times the input voltage then turns ratio will be________________?

15 / 50

_________offers the highest electric load.

16 / 50

Slip ring motor is preferred over squirrel cage induction motor where___________?

17 / 50

The horizontal plates of a CRO are supplied with _____________ to observe the waveform of signal?

18 / 50

Time constant of a circuit is the time in seconds taken after the application of voltage to each___________?

19 / 50

Annual operating expenditure of a power plant consists of____________?

20 / 50

In a common emitter, unbypassed resister provides___________?

21 / 50

The opposite of susceptibility is___________?

22 / 50

When a 3-phase synchronous generator is supplying a zero power factor lagging load, the armature field affects the main field in the following way

23 / 50

The period of a sine wave is _____ seconds. Its frequency is

24 / 50

Which part of a motor needs maximum attention for maintenance ?

25 / 50

The minimum value of potential gradient in a cable occurs in____________?

26 / 50

In a certain low-pass filter, fc = 3.5 kHz. Its pass-band is_______________?

27 / 50

A ferrite core has less eddy current loss than an iron core because_______________?

28 / 50

The differential gain is _____________?

29 / 50

The output voltage of a charger is__________?

30 / 50

Which of the following essential features is possessed by an indicating instrument?

31 / 50

The use of _________ instruments is merely confined within laboratories as standardizing instruments?

32 / 50

In an LC circuit, when the capacitor is maximum, the inductor energy is____________?

33 / 50

The efficiency of a transformer, under heavy loads, is comparatively low because_______________?

34 / 50

Negative feedback_______________?

35 / 50

If a lead-acid cell is discharged below 1.8 V the following will happen.____________?

36 / 50

In D.C. generators, the brushes on commutator remain in contact with conductors which_________________?

37 / 50

If the power and current gains of a transistor amplifier are 16500 and 100 respectively, then voltage gain is_____________________?

38 / 50

The universal gate is ________________?

39 / 50

Inductors acts as a short circuit for_______________?

40 / 50

A shunt generator can self-excite:_________________?

41 / 50

By which of the following methods the temperature inside arc nace can be varied ?

42 / 50

A MOSFET can be operated with________________?

43 / 50

The input capacitor in an amplifier is the______________ capacitor?

44 / 50

The energy radiated by sun on a bright sunny day is approximately______________?

45 / 50

Which is the correct order of sequence for representing the input values in K-map ?

46 / 50

For maximum transfer of power, internal resistance of the source should be_____________?

47 / 50

On which of the following routine tests are conducted ?

48 / 50

The input offset current equals the_____________?

49 / 50

A transistor takes_____________ inductor on a silicon IC chip?

50 / 50

The secondary of a current transformer is always short-circuited under operating conditions because it____________________?

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