Power Systems
Pump storage schemes are used to improve

 the load factor.
 the diversity factor.
  the plant capacity factor as well as the load factor of the power system.
 the power factor.

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Power Systems
Which of the following statements is true? Corona loss increases with

 decrease in conductor size and increase in supply frequency
 decrease in conductor size and decrease in supply frequency
 increase in conductor size and decrease in supply frequency
 increase in conductor size and increase in supply frequency

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Power Systems
The skin effect shows that

 current density is more at the surface of the condutor
 the distribution of AC current is uniform through the cross section of the conductor
 current density is lower at the surface of the condutor
 current density is more at the centre of the condutor

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