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Electrical Engineering MCQ Question & Answer in PDF Download

Q.

The protective relay is provided to 

  • AProvide additional safety to the circuit breaker in its operation.
  • BClose the contacts when the actuating quantity attains a certain predetermined value. 
  • CLimit the arcing current during the circuit breaker operation.
  • DEarth any stray voltage. 
Correct Answer : (B)

Close the contacts when the actuating quantity attains a certain predetermined value. 
Hints :

The protective relay is provided to Close the contacts when the actuating quantity attains a certain predetermined value. 

Electrical Engineering MCQ Question & Answer in PDF Download
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