Power Systems
In hydroelectric power plants

 both operating and initial cost are low.
 both operating and initial cost are high.
  operating cost is low and initial cost is high.
 operating cost is high and initial cost is low.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
An hydro-graph indicates

 the average run off during the period.
 the maximum and minimum run off during the period.
 the discharge at any time during the period under consideration.
All of these

ANSWER DOWNLOAD EXAMIANS APP