Power Systems
MCB stands for

  maximum capacity breaker.
  minimum capacity breaker.
  miniature circuit breaker.
  molded circuit breaker.

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Power Systems
The factor affecting run off are

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

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Power Systems
An hydro-graph indicates

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

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