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