In a circuit breaker the basic problem is to________________?

Related Mcqs:

Magnetic circuit breaker has ___________ trip action

A. delayed B. instantaneous C. both of the above D. none of the above...

Relays can be designed to respond to changes in________________?

A. resistance, reactance or impedance B. voltage and current C. light intensity D. temperature E. all above...

The ground wire should not be smaller than No _________ copper

A. 2 B. 4 C. 6 D. 10...

The inverse definite mean time relays are used for over current and earth fault protection of transformer against_________________?

A. heavy loads B. internal short-circuits C. external short-circuits D. all of the above...

The material used for fuse must have_____________?

A. low melting point and high specific resistance B. low melting point and -low specific resistance C. high melting point and low specific resistance D. low melting point and any specific resistance...