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Switchgear Protections QUESTIONS AND ANSWERS

Electrical Engineering : Switchgear Protections QUESTIONS AND ANSWERS :: part1 : 11 to 15

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

11.SF6 gas

is yellow in colour

is lighter than air

is nontoxic

has pungent small

12.Circuit breakers usually operate under

transient state of short-circuit current

sub-transient state of short-circuit current

steady state of short-circuit current

after D.C. component has ceased

13.D.C. shunt relays are made of

few turns of thin wire

few turns of thick wire

many turns of thin wire

many turns of thick wire

14.Burden of a protective relay is the power

required to operate the circuit breaker

absorbed by the circuit of relay

developed by the relay circuit

none of the above

15.In order that current should flow without causing excessive heating or voltage drop, the relay contacts should

have low contact resistance

be clean and smooth

be of sufficient size and proper shape

have all above properties

More Switchgear Protections QUESTIONS AND ANSWERS available in next pages

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Electrical Engineering Questions And Answers :: Switchgear Protections: part1

Switchgear Protections QUESTIONS AND ANSWERS

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