Power Systems
The insulation of the modern EHV lines is designed based on

 the lighting voltage.
 corona.
  the switch voltage.
 R × I.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Gross head of an hydroelectric power station is

 all of above.
 the height of water level in the river where the storage is provided.
  the difference of water level between the level in storage and tail race.
 the height of water level in the river where the tail race is provided.

ANSWER DOWNLOAD EXAMIANS APP