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Power Systems

Power Systems
Among the following which is not non conventional energy

  Tidal.
  Wind.
  Geothermal.
  Nuclear.

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Power Systems
What are the methods of laying underground cables?

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

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Power Systems
The power station that does not requier any moving part is

 Tidal power generation.
 Solar power generation.
 Wind power generation.
  Thermonic convertor.

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Power Systems
For variable heads of near about but less than 30 m, which type of turbines is used hydro power plant

 None of above.
  Kaplan.
 Pelton.
 Francis.

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Power Systems
The load current in short circuit calculations are neglected because

 short circuit currents are greatly out of phase with load currents
 both 1 and 2
 nether 1 nor 2
 short circuit currents are much larger than load currents

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Power Systems
The time taken by the turbine to fall to 0 rpm speed from 3000 rpm is called

  stopping time.
  settling time.
  coasting time.
  damping time.

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