

McqMate
Q. |
What does protective relay provide? |
A. | Provide additional safety to the circuit breaker in its operation. |
B. | Close the contacts when the actuating quantity attains a certain predetermined value. |
C. | Limit the arcing current during the circuit breaker operation. |
D. | Earth or ground any stray voltage. |
Answer» B. Close the contacts when the actuating quantity attains a certain predetermined value. |
View all MCQs in
Testing and Commissioning of Electrical Equipment’sNo comments yet