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Power Systems

Power Systems
Switchgear equipment include

  relays and CB.
  all of these.
  fuses.
  switches.

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Power Systems
Which of the following will take least time in starting from cold condition to full load operation

 Thermal power plant.
 Gas turbine plant.
  Hydro electric power plant.
 Nuclear power plant.

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

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

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Power Systems
A string type insulator has three units with self capacitance C and ground capacitance of 0.2 C having a string efficiency of

 80%
 78%
 82%
 76%

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Power Systems
Proximity effect depends on

All of these
 distance between the conductors
 relative permeability
 frequency

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Power Systems
A buchholz relay is used for

 protection of a transformer against all internal faults
 nether 1 nor 2
 protection of a transformer against all external faults
 both 1 and 2

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