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GETCO EE Practice Quiz-30

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Question 1

In a DC circuit breaker, the current interruption and arc quenching is obtained by:

Question 2

Which of the following circuit breakers has the lowest voltage range?

Question 3

While energizing a transform to prevent the maloperation of a differentially connected relay, the relay restrained coil is biased with.

Question 4

In which of the following lines Mho relay is used for protection?

Question 5

Earth wire on EHV overhead transmission line is provided to protect the line against:

Question 6

Which of the following method is used to minimize the error in differential protection scheme.

(i) use of Toroidal core

(ii) use of high permeable material in core

(iii) use of harmonic restrained coil

(iv) decrease in primary turn of CT

Question 7

By varying number of ampere turns which one of the following is altered?

Question 8

Main purpose of OCB (oil circuit breaker) is to:

Question 9

Which of the below is not a merit of static relay?

Question 10

For a round wire of diameter d, the fusing current I is given by;
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Jul 30AE & JE Exams

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Chetan GoyalChetan GoyalMember since Mar 2021
AIR 1805, GATE2021
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