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Power Systems

Power Systems
How much KWh energy is produced by fission of 1 gm of uranium U235

  24000 kWh.
  24 kWh.
 240 kWh.
 2400 kWh.

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Power Systems
If a generator of 250 MVA rating has an inertia constant of 6 MJ/MVA, its inertia constant on 100 MVA base is

 15 MJ/MVA
 6 MJ/MVA
 10.5 MJ/MVA
 2.5 MJ/MVA

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Power Systems
A steam power generation has an overall efficiency of 20 %. 0.6 Kg of coal is burnt per kWh of electrical energy generated. Calculated the calorific value of fuel

 7268.45 KCal / Kg.
 7562 KCal / Kg.
  7166.67 KCal / Kg.
 7000 KCal / Kg.

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Power Systems
What are the methods of laying underground cables?

  Both A and B.
 None of these.
 Draw - in - system / duct - pipe laying.
 Direct laying.

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Power Systems
The corona loss on a particular system at 60 Hz is 1 kW/km per phase. What is the corona loss at 50 Hz in kW/km per phase?

 1.13
 1
 0.93
 0.882

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Power Systems
The water from a catchment is 60*106 cu m annually and hydro station has head of 40 m. Assuming ideal generator and turbine, the power that can be theoretically generated is

 750 kW
 500 kW
 300 kW
 250 kW

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