Conductor | Transmission And Distribution Objective Type Questions and answers

16.  Bundled conductors reduce

   A. Surface electric stress of conductor

   B. Increase the line reactance

   C. Decrease the line capacitance

   D. none of the above

17.  Effective resistance of a conductor will be the same as ohmic resistance when

   A. Voltage is low

   B. Current is true sinusoidal

   C. Current is uniformly distributed in the X-section of the conductor

   D. All of the above

18.  For a given conductor the value of GMR is

   A. Large for capacitance calculation

   B. Large for inductance calculation

   C. Same for both capacitance and inductance calculation

   D. None of the above

19.  Hollow conductors are used in transmission lines to

   A. Reduce weight of copper

   B. Improve stability

   C. Reduce corona

   D. Increase power transmission capacity

20.  For a stranded conductor, the ratio of GMR to actual radius is

   A. Equal to 1

   B. More than 1

   C. Equal to 0.7788

   D. Less than 0.7788

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