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Power Systems

Power Systems
The corona loss on a particular system at 50 Hz is 1 kW/km per phase. What is the corona loss at 60 Hz in kW/km per phase?

 1.13
 1.25
 0.89
 1

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Power Systems
If the breakdown voltage of the insulator is high, the thickness of the insulator is

 less
 it does not related to breakdown voltage
None of these
 high

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Power Systems
If we increase the spacing between the phase conductors, the line capacitance

 increases
 remains unaffected
None of these
 decreases

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Power Systems
Specified quantities of slack bus are

 P and V
 P and δ
 P and Q
 V and δ

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Power Systems
A penstock is used as a condition between

 the turbine and discharge drain.
  the dam and the turbine in a hydro station.
 none of above.
 the heat ex-changer and the turbine in nuclear power plant.

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Power Systems
Demand factor of a plant is

 less than 1
 greater than 1
 0
 1

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