Electrical Engineering Quiz 37
1 / 50
A class C amplifier always drives _____________load?
2 / 50
In a four-pole D.C. machine____________?
3 / 50
Wave winding is composed of_______________?
4 / 50
In a 3 phase bridge rectifier the ripple frequency is _____________?
5 / 50
In a D.C. generator all of the following could be the effects of iron losses except___________?
6 / 50
In a paper mill where constant speed is required________________?
7 / 50
Which winding of the transformer has less cross-sectional area?
8 / 50
Distance relays are generally_____________?
9 / 50
If ADM = 3500 and ACM = 0.35, the CMRR is _______________?
10 / 50
The coupling angle or load angle of synchronous motor is defined as the angle between the__________?
11 / 50
The usual spans with R.C. poles are_______________?
12 / 50
The material for commutator brushes is generally_______________?
13 / 50
A closed path made by several branches of the network is known as____________?
14 / 50
The starting torque of a three phase induction motor can be increased by__________?
15 / 50
The flash point of transformer oil should be higher than_______________?
16 / 50
The gate voltage in a JFET at which drain current becomes zero is called ______________ voltage?
17 / 50
SCRs are used in series to meet_______________?
18 / 50
NAND gates are preferred over others because these__________________?
19 / 50
Which of the following capacitor is preferred in case of single phase motor ?
20 / 50
Which of the following statements is incorrect _________________?
21 / 50
Which of the following is not associated with a p-n junction?
22 / 50
An OPAMP has a slew rate of 5 V/? S .The largest sine wave O/P voltage possible at a frequency of 1 MHZ is_______________?
23 / 50
In a level compounded D.C. generator, full load terminal voltage is______________?
24 / 50
Which of the following is the best method for determining the stability and transient response ?
25 / 50
By which of the following methods motor rating for variable load drives can be determined ?
26 / 50
Which of the following Power Plant causes least environmental pollution____________?
27 / 50
A power factor meter has________________?
28 / 50
When the temperature of an extrinsic semiconductor is increased, the pronounced effect is on_________________?
29 / 50
All the electrical connections between the battery and vehicle should be by____________?
30 / 50
At parallel resonance, the line current is_______________?
31 / 50
D.C. motor is to drive a load which has certain minimum value for most of the time and some peak value for short duration. We will select the________________?
32 / 50
In three-phase induction motors sometimes copper bars are placed deep in the rotor to___________?
33 / 50
Belt conveyer can be used to transport coal at inclinations upto____________?
34 / 50
An SCR is made up of silicon because?
35 / 50
Shelf life of a small dry cell is___________?
36 / 50
A moving-coil permanent-magnet instrument can be used as ____________by using a low resistance shunt?
37 / 50
Which of the following is usually not the generating voltage ?
38 / 50
Permanent magnets are normally made of_____________?
39 / 50
Which of the following single-phase motors has relatively poor starting torque ?
40 / 50
The pressure on the two sides of the impulse wheel of a steam turbine_____?
41 / 50
If starting winding of a single-phase induction motor is left in the circuit, it will____________?
42 / 50
The coils of D.C. motor starter are wound with wire of_______________?
43 / 50
The value of critical field below the transition temperature will_______________?
44 / 50
The chemical effect of current is used in ______________?
45 / 50
The effect of sulphation is that the internal resistance__________?
46 / 50
An exciter for a turbo generator is a_____________?
47 / 50
A CS JFET amplifier has a load resistance of 10 kO , RD= 820O . If gm= 5mS and Vin= 500 mV, the output signal voltage is__________________?
48 / 50
In the design of a biasing circuit, the value of collector load RC is determined by__________________?
49 / 50
In a transistor, signal is transferred from a___________circuit?
50 / 50
In a 3 phase half wave rectifier, when firing angle is less than 90 degree, then the average dc output voltage becomes__________________?
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