Power Systems
For variable heads of near about but less than 30 meters, which type of turbine is used in hydro power station?

 Pelton
 Kaplan
 Francis
None of these

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

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