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Electrical Engineering Quiz 46

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Electrical Engineering Quiz 46

1 / 50

Which of the following insulating materials was suitable for low temperature applications ?

2 / 50

A D.C. welding generator has____________?

3 / 50

Which of the following coil will have large resonant frequency __________?

4 / 50

The ratio of starting torque to full-load torque is least in case of____________?

5 / 50

In Weston synchronoscope the moving coil is connected across______________?

6 / 50

A class A power amplifier uses _________________?

7 / 50

Which of the following motors will operate at high power factor ?

8 / 50

Which of the following motors will be used in electric clocks?

9 / 50

A synchronous motor running with normal excitation adjusts to load increases essentially by increase in______________?

10 / 50

The objective of earthing or grounding is_______________?

11 / 50

A TRIAC can be turned on with______________?

12 / 50

Rotor rheostat control method of speed control is used for____________?

13 / 50

_______________is universally used for windings of electrical machines because it is easily workable without any possibility of fracture?

14 / 50

The percentage slip in case of a synchronous motor is____________?

15 / 50

Tesla is a unit of_____________?

16 / 50

The modern steam turbines are___________?

17 / 50

The material of the heating element for a furnace should have___________?

18 / 50

In D.C. generators the polarity of the interpoles_____________?

19 / 50

If 1 A current flows in a circuit, the number of electrons flowing through this circuit is

20 / 50

cmf generated by A.C dynamo depends upon_____________?

21 / 50

___________ has the best damping properties?

22 / 50

In any A.C. circuit always__________?

23 / 50

The power transmitted will be maximum when____________?

24 / 50

For proper operation of the transistor, its collector should have___________________?

25 / 50

In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of___________?

26 / 50

While calculating Rth in Thevenin?s theorem and Norton equivalent

27 / 50

If a radio receiver amplifies all the signal frequencies equally well, it is said to have high ________________?

28 / 50

When we rub a glass rod with a silk cloth then________________?

29 / 50

If a parallel circuit is opened in the main line, the current_______________?

30 / 50

Hunting in a synchronous motor cannot be due to___________?

31 / 50

When a differential amplifier is operated single-ended, _______________?

32 / 50

By increasing impurity content in the metal alloy the residual resistivity always_____________?

33 / 50

The condition for maximum efficiency for a D.C. generator is______________?

34 / 50

The left hand rule correlates to______________?

35 / 50

In which of the following applications D.C. series motor is invariably tried?

36 / 50

Which of the following motors can be used for unity power factor ?

37 / 50

In De Laval steam turbine___________?

38 / 50

emf induced in a circuit according to Faradays law depends on the_____________?

39 / 50

Low resistivity materials are used in__________?

40 / 50

The cascade amplifier is a multistage configuration of__________?

41 / 50

Following will happen if battery charging rate is too high______________?

42 / 50

Which of the following statements is correct ___________?

43 / 50

Regenerative method of braking is based on that___________?

44 / 50

For diesel locomotives the range of horsepower is_______________?

45 / 50

When a multistage amplifier is to amplify d.c. signal, then one must use_____________coupling?

46 / 50

The frequency of an alternating current is____________?

47 / 50

The value of dielectric constant for vacuum is taken as____________?

48 / 50

Permeability in a magnetic circuit corresponds to________ in an electric circuit

49 / 50

The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of_______degrees?

50 / 50

The input impedance of a transistor is___________?

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