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Electrical Engineering Quiz 25

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Electrical Engineering Quiz 25

1 / 50

For display of signal pattern _____________voltage is applied to the horizontal plates of a CRO?

2 / 50

Blocked rotor test on induction motors is used to find out?

3 / 50

The NAND gate is AND gate followed by_________________?

4 / 50

1 Coulomb = ___________ e.

5 / 50

he retentivity (a property) of material is useful for the construction of_______________?

6 / 50

cables are used for 132 kV lines____________?

7 / 50

Which motor has the poorest speed control?

8 / 50

A 3-phase 440 V, 50 Hz induction motor has 4% slip. The frequency of rotor e.m.f. will be____________?

9 / 50

The transformer lamination?s are insulated from each other by____________?

10 / 50

SITH is also known as___________?

11 / 50

A control system working under unknown random actions is called______________?

12 / 50

Two infinite parallel plates 10 mm apart have maintained between them a potential difference of 100 V. The acceleration of an electron placed between them is______________?

13 / 50

Under normal operating condition voltage clamping device offers impedance of_________?

14 / 50

Ampere hour capacity of an industrial battery is based on _______ hours discharge rate

15 / 50

The ratio of maximum displacement deviation to full scale deviation of the instrument is called_______________?

16 / 50

_______________are the conductors, which connect the consumer?s terminals to the distribution?

17 / 50

The proper indication of incomplete combustion is_______________?

18 / 50

The unit of relative permeability is_____________?

19 / 50

If the percentage impedances of the two transformers working in parallel are different, then______________________?

20 / 50

Which of the following parameter can be neglected for a short line ?

21 / 50

Three 6 ohm resistors are connected to form a triangle. What is the resistance between any two corners ___________?

22 / 50

Ohm?s law is not applicable to____________?

23 / 50

In Boolean algebra, the bar sign (-) indicates__________________?

24 / 50

If a transistor amplifier feeds a load of low resistance (e.g. speaker), then voltage gain will be_______________?

25 / 50

are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators______________?

26 / 50

In the case of direct current____________?

27 / 50

During open circuit test of a transformer:

28 / 50

When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read_____________?

29 / 50

In a low power factor wattmeter the compensating coil is connected_______________?

30 / 50

In variable speed motor___________?

31 / 50

During which time maximum conduction spreading take place in the thyristor during turn ON?

32 / 50

The efficiency of a transformer will be maximum when_____________?

33 / 50

For which types of D.C. motor, dynamic braking is generally used ?

34 / 50

High tension cables are generally used up to_____________?

35 / 50

Which of the following methods is used to control temperature in resistance furnaces ?

36 / 50

The permissible flux density in case of cold rolled grain oriented steel is around__________?

37 / 50

The voltage of a single solar cells is about

38 / 50

The disadvantage of a half-wave rectifier is that the__________________?

39 / 50

An n-type semiconductor is______________?

40 / 50

The band width, in a feedback amplifier_______________?

41 / 50

A pony motor is used for the starting which of the following motors ?

42 / 50

Single phase induction motor usually operates on__________?

43 / 50

Load curve of a power plant has always____________?

44 / 50

A.C. servomotor is basically a____________?

45 / 50

In a certain low-pass filter, fc = 3.5 kHz. Its passband is____________?

46 / 50

The inputs of a NAND gate are connected together. The resulting circuit is _______________?

47 / 50

At very low frequencies a series R-C circuit behaves as almost purely___________?

48 / 50

The ohmmeter reading for a short circuited capacitor is____________?

49 / 50

?The total electric flux through any closed surface surrounding charges is equal to the amount oflcharge enclosed?. The above statement is associated with____________?

50 / 50

Trickle charging of a storage battery helps to___________?

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