Electrical Engineering Questions And Answers :: Switchgear Protections: part4



Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part4 : 1 to 5

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

1.An isolator is installed

to operate the relay of circuit breaker
as a substitute for circuit breaker
always independent of the position of circuit breaker
generally on both sides of a circuit breaker

2.Admittance relay is _______ relay.

impedance
directional
non-directional
none of the above

3.On which of the following effects of electric current a fuse operates ?

Photoelectric effect
Electrostatic effect
Heating effect
Magnetic effect

4.The steady state stability of the power system can be increased by

connecting lines in parallel
connecting lines in series
using machines of high impedance
reducing the excitation of machines

5.The material used for fuse must have

low melting point and high specific resistance
low melting point and -low specific resistance
high melting point and low specific resistance
low melting point and any specific resistance

More Switchgear Protections QUESTIONS AND ANSWERS available in next pages

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