1000+ Switchgear Protection MCQ Questions and Answers Pdf - 3

Question: 11

The power loss is an important factor for the design of

(A) feeder

(B) generator

(C) motor

(D) transmission line

Question: 12

To reduce short circuit fault currents _____ are used.

(A) capacitors

(B) resistors

(C) reactors

(D) none of the above

Question: 13

The voltage appearing across the contacts after opening of the circuit breaker is called _____ voltage.

(A) recovery

(B) operating

(C) arc

(D) surge

Question: 14

D.C. shunt relays are made of

(A) many turns of thick wire

(B) many turns of thin wire

(C) few turns of thick wire

(D) few turns of thin wire

Question: 15

A thermal protection switch can protect against

(A) over voltage

(B) overload

(C) temperature

(D) short circuit