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