Q.Which of the following is provided with arcing horns?

  • AIsolator
  • BAir-break switch
  • COil switch 
  • DNone of the above
Correct Answer : (B)

Air-break switch

Hints :

Air-break switch is provided with arcing horns.


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


Which of the following results in a symmetrical fault?

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