Q.The insulators may fail due to 

  • AFlash over
  • BShort-circuits
  • CDeposition of dust 
  • DAny of the above
Correct Answer : (D)

Any of the above

Hints :

The insulators may fail due to Flash over, Short-circuits and Deposition of dust.


Transmission line connects 


A 3-phase 4-wire system is commonly used for

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