Corona Loss | Transmission And Distribution Objective Type Questions and answers


36.  Corona is


   A. Partial breakdown of air

   B. Complete breakdown of air

   C. Sparking between lines

   D. All of the above


✔ View Answer


B. Complete breakdown of air

✍ Your Comments

Your name:

Your Email:

Your Comments:



37.  Corona is accompanied by


   A. Violate visible discharge in darkness

   B. Hissing sound

   C. Vibration

   D. All of the above


✔ View Answer


D. All of the above

✍ Your Comments

Your name:

Your Email:

Your Comments:



38.  Corona loss increases with


   A. Decrease in conductor size and increase in supply frequency

   B. increase in both conductor size and supply frequency

   C. Decrease in both conductor size and supply frequency

   D. Increase in conductor size and decrease in supply frequency


✔ View Answer


A. Crease in conductor size and increase in supply frequency

✍ Your Comments

Your name:

Your Email:

Your Comments:



39.  Corona loss can be reduced by the use of hollow conductors because


   A. The current density is reduced

   B. The eddy current in the conductor is eliminated

   C. For a given cross-section, the radius of the conductor is increased

   D. Of better ventilation in the conductor


✔ View Answer


C. For a given cross-section the radius of the conductor is increased

✍ Your Comments

Your name:

Your Email:

Your Comments:



40.  Corona loss in a transmission line is dependent on


   A. Diameter of the conductor

   B. Material of the conductor

   C. Height of the conductor

   D. None of the above


✔ View Answer


A. Diameter of the conductor

✍ Your Comments

Your name:

Your Email:

Your Comments:






< 1 2 3 4 5 6 7 8 9 10 Next>






Enter Your Suggestion/Comments Here










Can't read the image? Click here to refresh