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Power Systems

Power Systems
Rankine cycle efficiency of a steam power plant is of

  60 - 80 %.
  30 - 45 %.
  20 - 30 %.
  45 - 80 %.

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Power Systems
In hydro power stations what is an enlarged body of water just above the intake and used as a regulating reservoir called

  Fore bay.
 Spillways.
 Penstock.
 Reservoir.

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Power Systems
The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to

 225 electrical degrees/s²
 12.5 electrical degrees/s²
 125 electrical degrees/s²
 22.5 electrical degrees/s²

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Power Systems
Which of the following is not a secondary nuclear fuel

 U233.
  U235.
 Pu239.
 None of above.

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Power Systems
Which power plant cannot have single unit of 100 MW capacity

 Nuclear power plant.
 Steam power plant.
 Hydro electric power plant.
  Diesel engine plant.

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Power Systems
Which of the following method is used for changing power factor from leading to lagging

 any of the above
 shunt capacitor
 shunt reactor
 series capacitor

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