Electrical Engineering Quiz 66

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Electrical Engineering Quiz 66

1 / 50

In a D.C. shunt motor, speed is______________?

2 / 50

Lap winding is composed of_____________?

3 / 50

In a p-channel JFET, the charge carriers are _____________?

4 / 50

A synchronous motor can develop synchronous torque:

5 / 50

The maximum percentage gain in Regenerative feed heating cycle thermal efficiency____________?

6 / 50

Capacity of dry cells is_________?

7 / 50

For which of the following applications motor has to start with high acceleration ?

8 / 50

Which of the following statements is correct ?

9 / 50

For an oscillator to properly start, the gain around the feedback loop must initially be_________?

10 / 50

The carbon percentage is least in__________________?

11 / 50

Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control______________?

12 / 50

The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is__________?

13 / 50

In a tap changing transformer, the tappings are provided on__________?

14 / 50

The purpose of providing an iron core in a transformer is to_____________?

15 / 50

Two infinitely long parallel conductors in vacuum any separated 1 metre between centers >then a current of 1 ampere flows the. uk each conductor, produce on each other a force of_________________?

16 / 50

RC coupling is generally confined to low power applications because of____________?

17 / 50

The resistance of a conductor of diameter d and length l is R ?. If the diameter of the conductor is halved and its length is doubled, the resistance will be

18 / 50

Which of the following device is used to measure vacuum?

19 / 50

Which of the following motor will give relatively high starting torque ___________?

20 / 50

For long distance transmission the transformer used is_____________?

21 / 50

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

22 / 50

The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is _______________?

23 / 50

In capacitance grading of cables we use a _______ dielectric?

24 / 50

When voltage feedback (negative) is applied to an amplifier, its input impedance _______________?

25 / 50

The power dissipation in each of four parallel branches is 1.2 W. The total power dissipation is________________?

26 / 50

Electrical power output in a d.c. generator is equal to____________?

27 / 50

If modulation is 100% then signal amplitude is ____________arrier amplitude?

28 / 50

Which of the following is not a constituent for making porcelain insulators ?

29 / 50

The number of Faraday tubes of flux passing through a surface in an electric field is called____________?

30 / 50

A conductor, due to sag between two supports, takes the form of____________?

31 / 50

In induction motor, percentage slip depends on__________?

32 / 50

The maximum power developed in a synchronous motor will depend on__________?

33 / 50

When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is____________?

34 / 50

IGBT stands for___________?

35 / 50

Dielectric strength of rubber is around____________?

36 / 50

The maximum value of torque that a synchronous motor can develop without losing its synchronism, is known as_____________?

37 / 50

A silicon controlled racitifier (SCR) is a ____________?

38 / 50

Example of overfeed type stoker is___________?

39 / 50

A rotary converter combines the function of____________?

40 / 50

Power factor of a synchronous motor is unity when_____________?

41 / 50

Capacitive reactance is more when_______?

42 / 50

Which of the following protection is normally not provided on small distribution transformers ?

43 / 50

In a certain oscillator Av = 50. The attention of the feedback circuit must be___________?

44 / 50

A 3 Q resistor having 2 A current will dissipate the power of_______________?

45 / 50

Load shedding is possible through which of the following?

46 / 50

As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its__________?

47 / 50

A MOSFET has______________ terminals?

48 / 50

In transistor amplifiers, we generally use______________ capacitors?

49 / 50

A synchronous machine with large air gap has______________?

50 / 50

is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another_______________?

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