Power Systems
A transmission line has 50 km operating at frequency of 500 Hz. Find the type of the line?

 short transmission line
 any of the above
 medium transmission line
 long transmission line

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Power Systems
Gross head of an hydroelectric power station is

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

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