Power Systems
Which of the following contributes to the Rankine cycle efficiency improvement in a thermal power plant

 Use of steam for heating of boiler feed water.
 Reheat of steam an intermediate stages.
 Use of high pressure.
All of these

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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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Power Systems
An impulse turbine

 makes use of a draft tube.
  operates by initial complete conversion to kinetic energy.
 is most suited for low head and high discharge power plants.
 always operates submerged.

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