Q.

A Circuit breaker normally operates

  • AWhen the power is to be supplied
  • BWhen the line is to be tested
  • CWhen the switch is to be put on
  • DWhenever fault occurs in the line
Correct Answer : (D)

Whenever fault occurs in the line

Hints :

A Circuit breaker normally operates Whenever fault occurs in the line.

Previous

The most serious consequence of a major uncleared short-circuit fault could be

Next

Which of the following results in a symmetrical fault?

Join The Discussion