Electrical Engineering Quiz 53
1 / 50
The function of conservator in a transformer is___________________?
2 / 50
The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is______________?
3 / 50
In D.C. machines the number of slots per pole usually lies___________?
4 / 50
Zero initial condition for a system means_______________?
5 / 50
The property of a conductor due to which it passes current is called___________?
6 / 50
Which of the following motors is preferred for tape-recorders ?
7 / 50
____________are used for construction of core of electromagnets?
8 / 50
is the property of absorbing moisture from atmosphere_____________?
9 / 50
When a 1.6 k? resistor and a 120? resistor are connected in parallel, the total resistance is____________?
10 / 50
The disadvantage of base resistor method of transistor biasing is that it_________________?
11 / 50
A no-load test is performed on a transformer to determine_______________?
12 / 50
In a lead-acid battery the energy is stored in the form of___________?
13 / 50
Evaporative type of condenser has___________?
14 / 50
When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle?
15 / 50
If a square wave is fed to a differentiating circuit, the output will be _____________?
16 / 50
Which of the following statements regarding hysteresis motor is in incorrect?
17 / 50
A synchronous motor develops maximum power when load angle is____________?
18 / 50
Which of the following has the highest value of thermal conductivity ?
19 / 50
SF6 gas______________?
20 / 50
If firing angle in an SCR circuit is increased, the output _____________?
21 / 50
The selection of an electric motor for any application depends on which of the following factors ?
22 / 50
In a capacitor start single-phase motor, when capacitor is replaced by a resistance____________?
23 / 50
In a full wave rectifier, the rectification ratio is approximately equal to____________?
24 / 50
Negative feedback in an amplifier____________?
25 / 50
A star circuit has element of resistance R/2. The equivalent delta elements will be_____________?
26 / 50
Insulating materials have the function of______________?
27 / 50
Which of the following are not repayable after a stipulated period?
28 / 50
The point of intersection of d.c. and a.c. load lines represents __________________?
29 / 50
When the crystal current diode current is large, the bias is ______________?
30 / 50
Hysteresis loss least depends on____________?
31 / 50
A small coil lies inside a large coil. The two coils are horizontal concentric and carry currents in opposite directions. The large coil will experience______________?
32 / 50
Resistances can be measured with the help of_______________?
33 / 50
The superposition theorem requires as many circuits to be solved as there are____________?
34 / 50
A zener diode is________________ device?
35 / 50
Under over voltage condition impedance offered by the voltage clamping device is__________?
36 / 50
At transition temperature the value of critical field is____________?
37 / 50
When the load is above _______________ a synchronous motor is found to be more economical?
38 / 50
A 741-Type OP-AMP has a gain-bandwith product of 1MHz. A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of______________?
39 / 50
The square waveform of current has following relation between r.m.s. value and average value?
40 / 50
What is/are the configurable functions of each and every IOBs connected around the FPGA device from the operational point of view ?
41 / 50
Heat control switches are used in__________________?
42 / 50
Thermal voltage VT can be given by____________?
43 / 50
For starting a D.C. motor a starter is required because___________?
44 / 50
The material commonly used for sheaths of underground cables is______________?
45 / 50
In a certain common-source D-MOSFET amplifier, Vds =3.2 V r.m. and Vgs = 280 mV r.m.s. The voltage gain is_______________?
46 / 50
capacitors can be used only for D.C ?
47 / 50
Electric force between two point charges in air or vacuum is F. If we replace air or vacuum by an insulator (dielectric) of relative permitivity Cr the force between the charges will_______________?
48 / 50
Electric pressure is also called________?
49 / 50
Which of the following cell has a. reversible chemical reaction ___________?
50 / 50
A nuclear power plant is invariably used as a__________?
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