Top Electrical Engg MCQ - 500+ MCQ
1
The direction of motion of the conductor, according to Fleming's right and rule is indicated by
2
Light waves travel with a velocity of ____.
3
Which one of the following is the CORRECT relation between the peak and average value of an alternating current?
4
In a single-phase AC circuit, active power is calculated by the formula:
5
The standard SI unit of Inductance is the:
6
Which of the following losses is together called iron losses?
7
Therefore, the active power consumed is zero. The circuit only consumes and returns reactive power. 15. The primary and secondary windings of an Auto transformer are :
8
Which element in CRO is used to collect secondary emission electrons?
9
The active material on the positive plate of a fully charged lead-acid battery is:
10
Which property of a material supports the passage of magnetic flux through it?
11
The speed of a series motor at no load is...........
12
The working principle of a thermocouple, used for temperature measurement, is based on the:
13
What will be the Norton's resistance (in ohms) between terminals A and B for the circuit given below?
14
The principle of operation of a 3–phase induction motor is most similar to that of :
15
Synchronous motor only runs at
16
The metallic sheath is usually made of
17
Which of the following materials when used as the viewing surface of a CRO gives a bluish glow?
18
Distance relays (Impedance, Mho, Reactance relays) are predominantly used for the protection of:
19
In a synchronous motor with normal working condition, if the applied voltage of the synchronous motor goes down the power factor will
20
During resistance welding heat produced at the joint is proportional to ____.