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Electrical Engineering MCQ Question & Answer in PDF Download

Q.

In a Circuit Breaker Contact wipe  is necessary 

  • ATo decrease the speed of opening of the CB
  • BTo increase the speed of opening and reduce the arcing of contacts
  • CTo increase the dielectric strength across the CB contacts
  • DNone of the above 
Correct Answer : (C)

To increase the dielectric strength across the CB contacts
Hints :

In a Circuit Breaker Contact wipe  is necessary To increase the dielectric strength across the CB contacts.

Electrical Engineering MCQ Question & Answer in PDF Download
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