Switchgear and Protection Objective Questions & Answers Pdf - 2

Question: 6

A fuse is connected

(A) in parallel with circuit

(B) in series with circuit

(C) either in series or in parallel with circuit

(D) none of the above

Question: 7

A short circuit is identified by

(A) voltage rise

(B) voltage drop

(C) no current flow

(D) heavy current flow

Question: 8

Minimum arcing voltage will be last in case of

(A) tungsten

(B) carbon

(C) silver

(D) graphite

Question: 9

In a circuit breaker ionisation is not facilitated by

(A) high temperature of surrounding medium

(B) increase of field strength

(C) increase of mean path

(D) material of contacts

Question: 10

The short circuit in any winding of the transformer is the result of

(A) mechanical vibration

(B) impulse voltage

(C) insulation failure

(D) loose connection