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Power Systems

Power Systems
Peak load power plants is/are

 both 1 and 2
 pumped storage plant
 diesel plant
 nuclear plants

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Power Systems
For a 500 Hz frequency excitation, a 100 km long power line will be modelled as

 long transmission line
 shunt capacitor
 medium transmission line
 any of the above

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Power Systems
Which of following power plants is free from environmental problem

 Diesel engine.
 Nuclear.
 Steam.
  Hydroelectric.

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Power Systems
How to find the total number of strands (N) when number of layers (x) are given

 Total number of strands N = 3x² - 3x + 1
 Total number of strands N = 3x² + 3x - 1
 Total number of strands N = 3x² + 3x + 1
 Total number of strands N = 3x² - 3x - 1

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Power Systems
If the frequency is increased, then skin effect will

 decreases
 increases
 remains unaffected
 any of the above

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Power Systems
Which of following materials can be used as coolant

 Heavy water.
 CO2.
 Helium.
  Any of above.

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