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Power Systems

Power Systems
Which of the following is used in thermal plants

 Rankine cycle
 Joule cycle
All of these
 Otto cycle

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Power Systems
Calorific value of solid fuel is expressed as

  Cal / lt.
  KCal / gm.
  KCal / lt.
  Cal / gm.

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Power Systems
The overall efficiency of a steam power plant equal to

 regenerative cycle.
 the Rankine cycle.
  product of boiler efficiency, turbine efficiency and generator efficiency.
 binary vapor cycle.

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Power Systems
Power transmission lines are transposed to reduce

 skin effect
 proximity effect
 ferranti effect
 radio interference

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Power Systems
In which power plant, the thermal efficiency is quite low

  Hydro power plant.
  Nuclear power plant.
  Diesel power plant.
  Steam power plant.

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Power Systems
The insulation resistance of the 20 km long underground cable is 8 MΩ. Other things being same, the insulation resistance of 10 km long cable will be

 8 MΩ
 16 MΩ
 4 MΩ
 32 MΩ

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