Power Systems
The only place where slip ring induction motors used in thermal power plants is

  coal handling plant.
  conveyors.
  none of above.
  lubrication oil pumps.

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

 increase in conductor size and increase in supply frequency
 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

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