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Power Systems

Power Systems
The annual depreciation of hydro power plant is about

 20 - 25 %.
 15 - 20 %.
 10 - 15 %.
  0.5 - 1.5 %.

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Power Systems
The rating of CB is in terms of

  voltage.
  current.
  volt - ampere.
  VAR.

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Power Systems
A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is

 10
 4
 8
 20

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Power Systems
When a transformer is loaded, the secondary terminal voltage gains. That means power factor is

 zero.
  leading.
 unity.
 lagging.

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Power Systems
Which of the following statements is/are true regarding HVDC?

 There is no skin effect in dc line
All of these
 Corona loss is very much reduced in the dc line
 HVDC can utilize earth for its return path

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Power Systems
Among the following which is not non conventional energy

  Geothermal.
  Nuclear.
  Tidal.
  Wind.

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