Conductor | Transmission And Distribution Objective Type Questions and answers

11.  In case of transmission line conductors with the increase in atmospheric temperature

   A. Length decreases but stress increases

   B. length increases but stress decreases

   C. Both the length and stress increase

   D. Both the length and stress decreases

12.  By using bundle conductors, the critical voltage for the formation of corona will

   A. Remain same

   B. Decrease

   C. Increase

   D.Not occur

13.  When a live conductor of public electric supply breaks down and touches the earth which of the following will happen?

   A. Current will flow to earth

   B. Supply voltage will drop

   C. Supply voltage will increase

   D. No current will flow in the conductor

14.  The still used in steel cored to contactors is usually

   A. Alloy steel

   B. Stainless steel

   C. Mild steel

   D.High-speed steel

15.  For a 400 KV line, the spacing between phase conductors is around

   A. 8 m

   B. 11 m

   C. 14 m

   D. 20 m

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