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Electrical Engineering Quiz 65

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Electrical Engineering Quiz 65

1 / 50

The voltage of domestic supply is 220V. This figure represents__________?

2 / 50

Induction type single phase energy meters measure electric energy in_______________?

3 / 50

Which of the following is reversible in action ?

4 / 50

A passive network is one which contains____________?

5 / 50

Slip of an induction motor is negative when_____________?

6 / 50

The change in flux linkages can be caused in which of the following ways ?

7 / 50

A voltage divider consists of two 100 k? resistors and a 12 V source. What will the output voltage be if a load resistor of 1 M? is connected to the output?

8 / 50

Which of the following can be measured by LVDT ?

9 / 50

In AC circuits, laminated iron is invariably used in order to__________?

10 / 50

Ripple factor is the ratio of______________________?

11 / 50

AC power in a load can be controlled by using_____________?

12 / 50

Superhertodyne principle refers to_________________?

13 / 50

When a bogie negotiates a curve, reduction in adhesion occurs resulting in sliding. Thus sliding is acute when_______________?

14 / 50

As the breakdown voltage reached, the DIAC exhibits?

15 / 50

Excessive charging a battery tends to____________?

16 / 50

Which of the following are the constants of the transmission lines ?

17 / 50

Load carrying capacity of belt conveyor is about___________?

18 / 50

For the same cylinder dimensions and speed, which of the following engine will produce least power?

19 / 50

If a D.C. motor designed for 40?C ambient temperature is to be used for 50?C ambient temperature, then the motor_____________?

20 / 50

Which D.C. motor will be suitable along with flywheel for intermittent light and heavy loads?

21 / 50

Two waves of the same frequency have opposite phase when the phase angle between them is_________?

22 / 50

The action of electromagnetic machines can be related to which of the following basic principles __________?

23 / 50

When an SCR is turned on, the voltage across it is about _____________?

24 / 50

With feed back ____________ reduces?

25 / 50

Two similar charges each of one coulomb placed in air one meter apart repel each other with a force______________?

26 / 50

The product of apparent power and cosine of the phase angle between circuit voltage and current is

27 / 50

The value of starting capacitor of a fractional horse power motor will be__________?

28 / 50

Electric displacement is a__________quantity

29 / 50

Insulating materials have the function of___________?

30 / 50

In a mercury arc rectifier characteristic blue luminosity is due to_____________?

31 / 50

The self inductances of two coils are 8 mH and 18 mH. If the co-efficients of coupling is 0.5, the mutual inductance of the coils is______________?

32 / 50

For frequencies above the resonant frequency , a series LC circuit behaves as a ____________load?

33 / 50

The emf induced in a coil by a changing magnetic flux may have unit as______________?

34 / 50

The cold rolled grain oriented steel has ___________ permeability in the direction of the grain orientation?

35 / 50

The barrier voltage at a pn junction for germanium is about________________?

36 / 50

One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven_______________?

37 / 50

The switching function of semiconductor devices can be characterized with____________?

38 / 50

A steam power station requires space______________?

39 / 50

In a superhetrodyne receiver, the difference frequency is chosen as the IF rather than the sum frequency because _________________?

40 / 50

The fuel used in nuclear reactor is_____________?

41 / 50

Six resistors are in parallel. The two lowest-value resistors are both 1.2 k?. The total resistance_____________?

42 / 50

The open circuit voltage of any storage cell depends wholly upon___________?

43 / 50

The storage battery generally used in electric power station is__________?

44 / 50

When the stator windings are connected in such a fashion that the number of poles are made half, the speed of the rotor of a synchronous motor___________?

45 / 50

The demagnetising component of armature reaction in a D.C. generator___________?

46 / 50

If the gain of the critical damped system is increased it will behave as______________?

47 / 50

The active materials of a nickel-iron battery are___________?

48 / 50

A transistor is a___________operated device?

49 / 50

On which of the following variables heat convected depends ?

50 / 50

Which of the following statements is incorrect ?

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