Switchgear and Protection Objective Questions & Answers Pdf - 1

Question: 1

The time of closing the cycle, in modern circuit breakers is

(A) 0.01 sec

(B) 0.10 sec

(C) 0.001 sec

(D) 0.003 sec

Question: 2

H.R.C. fuses provide best protection against

(A) short circuits

(B) open circuits

(C) reverse current

(D) overload

Question: 3

A.C. network analyser is used to solve problems of

(A) load flow, short circuit and stability

(B) load flow and stability

(C) load flow and short circuit

(D) load flow

Question: 4

A _____ is used to measure the stator winding temperature of the generator.

(A) thermometer

(B) resistance thermometer

(C) pyrometer

(D) thermocouple

Question: 5

Overfluxing protection is recommended for

(A) station transformer of the power plant

(B) auto transformer of the power plant

(C) generator transformer of the power plant

(D) distribution transformer