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Power Systems

Power Systems
Find the value of a729, where "a" is the operator

 α
 0
 1
 α²

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Power Systems
Mercury is choice with steam in binary vapor cycle because

  all of above.
 relative low vaporization pressure.
 higher saturation temperature than other fluids.
 higher critical temperature and pressure.

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Power Systems
Peak load power plants is/are

 diesel plant
 pumped storage plant
 nuclear plants
 both 1 and 2

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Power Systems
Which of the following transmission line is most practically used in load flow analysis?

 Nominal T
 Nominal ∏
 nether 1 nor 2
 either 1 or 2

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

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

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Power Systems
If the inertia constant H = 8 MJ/MVA for a 50 MVA generator, the stored energy is

 400 MJ
 50 MJ
 8 MJ
 200 MJ

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