Electrical Engineering Quiz 25
1 / 50
Ampere hour capacity of an industrial battery is based on _______ hours discharge rate
2 / 50
Which of the following methods is used to control temperature in resistance furnaces ?
3 / 50
The transformer lamination?s are insulated from each other by____________?
4 / 50
The inputs of a NAND gate are connected together. The resulting circuit is _______________?
5 / 50
High tension cables are generally used up to_____________?
6 / 50
Load curve of a power plant has always____________?
7 / 50
Which motor has the poorest speed control?
8 / 50
cables are used for 132 kV lines____________?
9 / 50
Three 6 ohm resistors are connected to form a triangle. What is the resistance between any two corners ___________?
10 / 50
A.C. servomotor is basically a____________?
11 / 50
In variable speed motor___________?
12 / 50
For which types of D.C. motor, dynamic braking is generally used ?
13 / 50
Blocked rotor test on induction motors is used to find out?
14 / 50
are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators______________?
15 / 50
In the case of direct current____________?
16 / 50
1 Coulomb = ___________ e.
17 / 50
he retentivity (a property) of material is useful for the construction of_______________?
18 / 50
SITH is also known as___________?
19 / 50
In Boolean algebra, the bar sign (-) indicates__________________?
20 / 50
In a low power factor wattmeter the compensating coil is connected_______________?
21 / 50
A pony motor is used for the starting which of the following motors ?
22 / 50
An n-type semiconductor is______________?
23 / 50
The permissible flux density in case of cold rolled grain oriented steel is around__________?
24 / 50
Which of the following parameter can be neglected for a short line ?
25 / 50
During open circuit test of a transformer:
26 / 50
The unit of relative permeability is_____________?
27 / 50
Trickle charging of a storage battery helps to___________?
28 / 50
The proper indication of incomplete combustion is_______________?
29 / 50
The ratio of maximum displacement deviation to full scale deviation of the instrument is called_______________?
30 / 50
A control system working under unknown random actions is called______________?
31 / 50
A 3-phase 440 V, 50 Hz induction motor has 4% slip. The frequency of rotor e.m.f. will be____________?
32 / 50
When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read_____________?
33 / 50
The disadvantage of a half-wave rectifier is that the__________________?
34 / 50
In a certain low-pass filter, fc = 3.5 kHz. Its passband is____________?
35 / 50
The efficiency of a transformer will be maximum when_____________?
36 / 50
For display of signal pattern _____________voltage is applied to the horizontal plates of a CRO?
37 / 50
If the percentage impedances of the two transformers working in parallel are different, then______________________?
38 / 50
During which time maximum conduction spreading take place in the thyristor during turn ON?
39 / 50
The band width, in a feedback amplifier_______________?
40 / 50
?The total electric flux through any closed surface surrounding charges is equal to the amount oflcharge enclosed?. The above statement is associated with____________?
41 / 50
Under normal operating condition voltage clamping device offers impedance of_________?
42 / 50
If a transistor amplifier feeds a load of low resistance (e.g. speaker), then voltage gain will be_______________?
43 / 50
_______________are the conductors, which connect the consumer?s terminals to the distribution?
44 / 50
Single phase induction motor usually operates on__________?
45 / 50
The ohmmeter reading for a short circuited capacitor is____________?
46 / 50
The NAND gate is AND gate followed by_________________?
47 / 50
Ohm?s law is not applicable to____________?
48 / 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______________?
49 / 50
At very low frequencies a series R-C circuit behaves as almost purely___________?
50 / 50
The voltage of a single solar cells is about
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