Electrical Engineering Quiz 66
1 / 50
As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its__________?
2 / 50
In capacitance grading of cables we use a _______ dielectric?
3 / 50
Example of overfeed type stoker is___________?
4 / 50
Where D.C. motor of H.P. 12 or more requires frequent starting, stopping, reversing and speed control______________?
5 / 50
If modulation is 100% then signal amplitude is ____________arrier amplitude?
6 / 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_________________?
7 / 50
Power factor of a synchronous motor is unity when_____________?
8 / 50
Which of the following protection is normally not provided on small distribution transformers ?
9 / 50
The power dissipation in each of four parallel branches is 1.2 W. The total power dissipation is________________?
10 / 50
In transistor amplifiers, we generally use______________ capacitors?
11 / 50
Dielectric strength of rubber is around____________?
12 / 50
is an instrument which measures the insulation resistance of an electric circuit relative to earth and one another_______________?
13 / 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
14 / 50
The maximum power developed in a synchronous motor will depend on__________?
15 / 50
Capacitive reactance is more when_______?
16 / 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____________?
17 / 50
Load shedding is possible through which of the following?
18 / 50
A MOSFET has______________ terminals?
19 / 50
Which of the following statements is correct ?
20 / 50
For an oscillator to properly start, the gain around the feedback loop must initially be_________?
21 / 50
A rotary converter combines the function of____________?
22 / 50
A synchronous motor can develop synchronous torque:
23 / 50
For long distance transmission the transformer used is_____________?
24 / 50
A synchronous machine with large air gap has______________?
25 / 50
The carbon percentage is least in__________________?
26 / 50
Which of the following device is used to measure vacuum?
27 / 50
A silicon controlled racitifier (SCR) is a ____________?
28 / 50
Capacity of dry cells is_________?
29 / 50
Lap winding is composed of_____________?
30 / 50
In a p-channel JFET, the charge carriers are _____________?
31 / 50
The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is _______________?
32 / 50
The maximum value of torque that a synchronous motor can develop without losing its synchronism, is known as_____________?
33 / 50
The purpose of providing an iron core in a transformer is to_____________?
34 / 50
In a D.C. shunt motor, speed is______________?
35 / 50
In a tap changing transformer, the tappings are provided on__________?
36 / 50
The number of Faraday tubes of flux passing through a surface in an electric field is called____________?
37 / 50
A conductor, due to sag between two supports, takes the form of____________?
38 / 50
IGBT stands for___________?
39 / 50
Electrical power output in a d.c. generator is equal to____________?
40 / 50
The maximum percentage gain in Regenerative feed heating cycle thermal efficiency____________?
41 / 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__________?
42 / 50
Which of the following essential features is possessed by an indicating instrument ?
43 / 50
In induction motor, percentage slip depends on__________?
44 / 50
Which of the following is not a constituent for making porcelain insulators ?
45 / 50
When voltage feedback (negative) is applied to an amplifier, its input impedance _______________?
46 / 50
RC coupling is generally confined to low power applications because of____________?
47 / 50
Which of the following motor will give relatively high starting torque ___________?
48 / 50
For which of the following applications motor has to start with high acceleration ?
49 / 50
A 3 Q resistor having 2 A current will dissipate the power of_______________?
50 / 50
In a certain oscillator Av = 50. The attention of the feedback circuit must be___________?
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