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Electrical Engineering MCQ Question & Answer in PDF Download

Q.

Main purpose of oil in OCB is to 

  • AProvide insulation
  • BProvide cooling of contacts 
  • CQuenching arc
  • DNone of above 
Correct Answer : (C)

Quenching arc
Hints :

Main purpose of oil in OCB is to Quenching arc.

Electrical Engineering MCQ Question & Answer in PDF Download
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