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Power Systems

Power Systems
Skin effect depends on

 frequency
 relative permeability
 conductivity
All of these

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Power Systems
A diesel power station has fuel consumption of 0.28 Kg per kWh. The calorific value of fuel is being 10000 KCal / kg. Determine the overall efficiency

 40.85 %.
  30.26 %.
  30.7 %.
 40 %.

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Power Systems
Plug setting of a relay can be altered by varying

 no. of ampere-turns.
 none of these.
 adjustable back up stop.
 air gap of magnetic path.

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Power Systems
Which of the following transmission line is most practically used in load flow analysis?

 Nominal T
 either 1 or 2
 Nominal ∏
 nether 1 nor 2

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Power Systems
Merze price current scheme protection is used in

  both A and B.
  transformer.
  bus bars.
  alternator.

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Power Systems
The radiation shield for a nuclear power reactor for biological safety is provided by having the reactor

 encased thick metal wall.
 immersed in water pool.
  encased by thick concrete wall.
 isolated from outside word with strong magnetic field.

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