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