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Power Systems

Power Systems
If the load is short circuited, then reflection coefficient of voltage is

 -1
 1
 -2
 0

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Power Systems
A transmission line is compensated with shunt capacitance Csh. After shunt compensation surge impedance loading will

 decreases
 remains unaffected
None of these
 increases

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Power Systems
A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. The plant capacity factor for the station is

 0.6
 0.5
 1
 0.75

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Power Systems
In which of the following given faults, all the sequence currents are equal?

 LG
 LLG
 LLL
 LL

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Power Systems
Critical visual voltage is the voltage at which

 both 1 and 2
 corona is just initiated
 corona is visible with blue or violet colour
None of these

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Power Systems
Deflectors are provided in

 propeller turbine.
  Pelton wheel.
 Kaplan turbine.
 Francis turbine.

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