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Power Systems

Power Systems
Breaking current is a ------------------ value?

 average
 RMS
 maximum
 any of the above

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Power Systems
Which of the following represents the sag(S) of a transmission line?

 S = wl²/16T
 S = wl²/8T
 S = wl²/2T
 S = wl²/4T

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Power Systems
A steam power generation has an overall efficiency of 20 %. 0.6 Kg of coal is burnt per kWh of electrical energy generated. Calculated the calorific value of fuel

 7000 KCal / Kg.
 7268.45 KCal / Kg.
 7562 KCal / Kg.
  7166.67 KCal / Kg.

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Power Systems
The conversion ratio of breeder reactor are

 1.
  greater than 1.
 less than 1.
 none of above.

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Power Systems
The generating station suitable to operate as peak load plant is

 Power station.
 Thermal power station.
 Nuclear power station.
  Pumped storage.

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Power Systems
When a transformer is loaded, the secondary terminal voltage gains. That means power factor is

 unity.
 lagging.
 zero.
  leading.

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