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Power Systems

Power Systems
For large plants of capacity for more than 15 MW, what type of cooling is used

  Liquid.
  Hydrogen.
  Air.
  Water.

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Power Systems
Characteristics of arc quenching medium is/are

All of these
 High thermal conductivity
 High dielectric strength
 Non flammable

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Power Systems
The overall efficiency of a steam power plant equal to

  product of boiler efficiency, turbine efficiency and generator efficiency.
 binary vapor cycle.
 regenerative cycle.
 the Rankine cycle.

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Power Systems
Normally Z bus matrix is a

 full matrix
 sparse matrix
 null matrix
 unit matrix

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Power Systems
The positive sequence reactance will be equal to negative sequence if the equipment is

  motor.
  transformer and transmission lines.
  none of these.
  generator.

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Power Systems
One atomic mass unit is equivalent to

 180.5 MeV.
 120.4 MeV.
 251.2 MeV.
  931.4 MeV.

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