Power Systems
Per unit of any quantity is defined as

 base value of quantity /actual value of quantity in different units
 base value of quantity /actual value of quantity in same units
 actual value of quantity /base value of quantity in same units
 actual value of quantity /base value of quantity in different units

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
The factor affecting run off are

 the topography and nature of soil in the catchment area.
  all of above.
 rain fall pattern, shape and size of catchment area.
 amount of vegetation and weather condition in the catchment area.

ANSWER DOWNLOAD EXAMIANS APP