Electrical Engineering Questions And Answers :: Switchgear Protections: part1

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Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part1 : 1 to 5

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2014 and IES 2014 examinations :

1.Fault diverters are basically

fuses
relays
fast switches
circuit breakers

2.Relays can be designed to respond to changes in

resistance, reactance or impedance
voltage and current
light intensity & temperature
all above

3.On which of the following routine tests are conducted ?

Oil circuit breakers
Air blast circuit breakers
Minimum oil circuit breakers
All of the above

4.Circuit breakers are essentially

current carrying contacts called electrodes
arc extinguishers
circuits to break the system
transformers to isolate the two systems

5.Magnetic circuit breaker has ______ trip action.

delayed
instantaneous
both of the above
none of the above

More Switchgear Protections QUESTIONS AND ANSWERS available in next pages

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