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Power Systems

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

 maximum
 RMS
 average
 any of the above

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Power Systems
A power station has a maximum demand of 15000 kW. The annual load factor is 50% and plant capacity factor is 40%. What is the reserve capacity of the plant?

 7500 kW
 3750 kW
 3000 kW
 6000 kW

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Power Systems
In kaplan runner, the number of blades is generally of the order of

 12 - 16.
 1 - 2.
  16 - 24.
  3 - 6.

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Power Systems
For n bus power system size of Y bus matrix is

 (n-1)×(n-2)
 n×n
 (n-1)×(n-1)
 (n-2)×(n-2)

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Power Systems
Where do compounding done in thermal power plants

  Ash handling plant.
  Turbine.
  Generator.
  Coal handling plant.

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Power Systems
Lightning arresters are made up of which material?

 any of the above
 silicon oxide
 copper
 silver

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