Switchgear Protections - Interview Questions | Exam2Win

Take a timed mock test specifically for Switchgear Protections.

1. Fault diverters are basically

A. fuses

B. relays

C. fast switches

D. circuit breakers

Explanation:

2. An efficient and a well designed protective relaying should have

A. good selectivity and reliability

B. economy and simplicity

C. high speed and selectivity

D. all of the above

Explanation:

3. SF6 gas

A. is yellow in colour

B. is lighter than air

C. is nontoxic

D. has pungent small

Explanation:

4. Circuit breakers usually operate under

A. transient state of short-circuit current

B. sub-transient state of short-circuit current

C. steady state of short-circuit current

D. after D.C. component has ceased

Explanation:

5. D.C. shunt relays are made of

A. few turns of thin wire

B. few turns of thick wire

C. many turns of thin wire

D. many turns of thick wire

Explanation: