Q.Strain type insulators are used 

  • AAt dead ends 
  • BAt intermediate anchor towers 
  • COn straight runs
  • DAny of (a) or (b)
Correct Answer : (D)

Any of (a) or (b)

Hints :

Strain type insulators are used At dead ends  and At intermediate anchor towers.


Transmission line connects 


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

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