Electrical Engineering Quiz 51
1 / 50
If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes______________?
2 / 50
Hysteresis loss in a transformer varies as CBmax = maximum flux density) ?
3 / 50
The material used for fuse must have_____________?
4 / 50
Ground resistance should be designed such that_____________?
5 / 50
The converse of hardness is known as______________?
6 / 50
For measurement of inductance having high value, we should use______________?
7 / 50
The stability factor of a collector feedback bias circuit is_______________ that of base resistor bias?
8 / 50
The dielectric constant (relative permittivity) of glass is given by___________?
9 / 50
The bedding on a cable consists of____________?
10 / 50
The fan put of a 7400 NAND gate is_______________?
11 / 50
The pressure at the furnace is minimum in case of___________?
12 / 50
In a CB amplifier the maximum efficiency could be____________?
13 / 50
A.C. series motor as compared to D.C. series motor has__________?
14 / 50
The output characteristics of a JFET closely resemble the output characteristics of a ___________ valve?
15 / 50
Self-inductance of a long solenoid is______________?
16 / 50
The use of negative feedback ________________?
17 / 50
The time constant and R-C circuit may also be defined as the time during which the charging current falls to ________ percent of its initial maximum value
18 / 50
In a 3 phase VSI SPWM to use a single carrier signal and preserve the features of PWM technique, the normalized carrier frequency should be____________?
19 / 50
If the load on a DC shunt motor is increases, its speed is slightly reduced due to______________?
20 / 50
The distributors for residential areas are______________?
21 / 50
Ward-Leonard control is basically a____________?
22 / 50
If the current in a capacitor leads the voltage by 80?, the loss angle of the capacitor is_________________?
23 / 50
The resistance of a few meters of wire conductor in closed electrical circuit is____________?
24 / 50
The impurity atoms is semiconductors_____________?
25 / 50
The speed characteristics of an induction motor closely resemble the speedload characteristics of which of the following machines?
26 / 50
The sum of all phase current in a star connected primary winding with no neutral connection is equal to___________?
27 / 50
Kirchhoff s law is applicable to____________?
28 / 50
A perfect black body is one that_____________?
29 / 50
__________ has a low relative permeability and is used principally in field frames when cost is of primary importance and extra weight is not objectionable?
30 / 50
Rotor of a motor is usually supported on ___________________ bearings?
31 / 50
Mostly, synchronous motors are of_____________?
32 / 50
Which of the following material is not a semiconductor ?
33 / 50
A carrier based PWM technique in CSI is composed of____________?
34 / 50
In a control system the output of the controller is given to_____________?
35 / 50
Synchronsizing power of a synchronous machine is_____________?
36 / 50
In any rotating machine that part which houses the conductors and in which e.m.f. induced is to be utilized is called____________?
37 / 50
Rankine cycle operating on low pressure limit of p1 an 1 high pressure limit of p2__________?
38 / 50
Emitter follower is used for________________?
39 / 50
In induction motors, the length of air gap in kept as small as mechanically possible is order to have____________?
40 / 50
________________is preferred for automatic drives?
41 / 50
The following resistors are in parallel across a voltage source: 220? , 470? , and 560? . The resistor with the least current is______________?
42 / 50
A hysteresis motor works on the principle of__________?
43 / 50
An isolator is installed_____________?
44 / 50
A circuit is disconnected by isolators when____________?
45 / 50
The voltage gain of a transistor connected in common collector arrangement is____________?
46 / 50
A capacitive load in voltage source inverters generates ________________?
47 / 50
In a D.C. generator in case the resistance of the field winding is increased, then output voltage will____________?
48 / 50
A crowbar is a circuit which is used to protect a_____________?
49 / 50
The increased load during summer months is due to____________?
50 / 50
A certain voltage divider consists of two 12 k? resistors in series. Which of the following load resistors will have the most effect on the output voltage?
Provide Your Information
Your score is
The average score is 91%
Restart quiz
