Power Systems
Efficiency of thermal power plant can be taken as

  product of efficiencies of all stages.
  turbine efficiency.
  generator efficiency.
  efficiency of thermal cycle.

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Power Systems
The draft tube is provided to

None of these
  increase the acting head on the water wheel.
 reduce the effect of water hammer.
 raise the water surface of the stream to create an artificial head.

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Power Systems
The modern trend in electric power generation

 to have large number of small size thermal plants located at different places.
  none of above.
 to have large size thermal plant located near coal fields.
 to have large size thermal plants near load centre.

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