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Power Systems

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

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

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Power Systems
Isolator in sub station is open under ------------- condition?

 any of the above
 short circuit
 no load
 full load

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Power Systems
In a steam power plant, the feed water coming to the economizer is heated plant the feed water coming to the economizer is heated using

 LP steam.
 direct heat in the furnace.
 HP steam.
  flue gas.

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Power Systems
A 3-phase breaker is rated at 2000 MVA, 33 kV, its making current will be

 49 kVA.
  89.22 kVA.
 70 kVA.
  35 kVA.

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Power Systems
One Kg of natural uranium gives energy equivalent to about

 1000 Kg of coal.
 5000 Kg of coal.
  10500 Kg of coal.
 100 Kg of coal.

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Power Systems
For a fixed value of complex power flow in a transmission line having a sending end voltage V, the real power loss will be proportional to

 V2.
 1 / V.
  1 / V2.
 V.

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