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Electrical Engineering Quiz 20

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Electrical Engineering Quiz 20

1 / 50

Paper condenser is___________?

2 / 50

The ear is not sensitive to___________?

3 / 50

Heat transfer by condition will not occur when____________?

4 / 50

A direct current can be measured by________________?

5 / 50

The effect of corona can be detected by___________?

6 / 50

Three 47 ? resistors are connected in parallel across a 110 volt source. The current drawn from the source is approximately_______________?

7 / 50

In a circuit containing R, L and C, power loss can take place in____________?

8 / 50

A perfect conductor has_____________?

9 / 50

The standard full-load power factor ratings for synchronous motors are___________?

10 / 50

Commonly used instruments in power system measurement are_______________?

11 / 50

The input impedance of a MOSFET is of the order of______________?

12 / 50

In BJT, switching losses occurs___________?

13 / 50

The period of a wave is___________?

14 / 50

Which of the following power plants need the least period for installation ?

15 / 50

The output impedance of an emitter follower is______________?

16 / 50

If the arrow of crystal diode symbol is positive w.r.t. bar, then diode is _____________biased?

17 / 50

The purpose of retardation test on D.C. shunt machines is to find out____________?

18 / 50

Electric flux due to a point charge +q is______________?

19 / 50

In the breakdown region, a zener didoe behaves like a _______________source?

20 / 50

Application of Norton?s theorem to a circuit yields:________________?

21 / 50

A synchronous motor is running with normal excitation. When the load is increased, the armature current drawn by it increases because

22 / 50

The signal generator generally used in the laboratories is___________oscillator?

23 / 50

Thermonic emission occurs in______________?

24 / 50

The two input terminals of an opamp are labeled as______________?

25 / 50

A reluctance motor____________?

26 / 50

__________ industry has the least power consumption per ton of product?

27 / 50

When a transistor is used as an amplifier, it is operated in the _____________ region?

28 / 50

Transistor biasing is done to keep _____________in the circuit?

29 / 50

When electric current passes through a metallic conductor, its temperature rises. This is due to__________?

30 / 50

The minimum armature current of the synchronous motor corresponds to operation at______________?

31 / 50

Insertion of resistance in the rotor of an induction motor to develop a given torque?

32 / 50

D.C. series motors are used______________?

33 / 50

Blowing down of boiler water is the process_____________?

34 / 50

Steam turbines are governed by the following methods_____________?

35 / 50

The household energy meter is_______________?

36 / 50

In a lead-acid cell, lead is called as____________?

37 / 50

A network which contains one or more than one source of e.m.f. is known as___________?

38 / 50

The leakage current in CE arrangement is____________that in CB arrangement?

39 / 50

Which of the following factors affect resistivity of metals ?

40 / 50

It becomes more difficult to remove_________________?

41 / 50

The speed regulation of a synchronous motor is always___________?

42 / 50

Class _____________ operation gives the maximum distortion?

43 / 50

In liquid level and electrical system analogy, voltage is considered analogous to_____________?

44 / 50

Mercury as an electric contact material is_______________?

45 / 50

The rotor of an induction motor runs at__________?

46 / 50

The most popular types of ICs are _________________?

47 / 50

In a three-phase supply floating neutral is undesirable because it way give rise to___________?

48 / 50

Nichrome wire is an alloy of_____________?

49 / 50

A parallel resonant band-pass filter consists of a 90 ? resistor in series with a parallel network made up of a 60 mH coil and a 0.02 ?F capacitor. The output is taken across the capacitor/coil. The coil winding has a resistance of 20 ?. What is the center frequency of the filter?

50 / 50

A single core cable used on 33000 V has conductor diameter 10 mm and the internal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is____________?

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