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Power Systems

Power Systems
Which turbine is ideally suited to pumped storage plants

  Kaplan.
 Francis.
 Pelton.
 Impeller.

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Power Systems
Offset mho relay is used for the protection of equipment when

None of these
 failure of prime mover of the generator
 either 1 or 2
 loss of excitation of the generator

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Power Systems
The equation of area control error(ACE) is

 ACE = ΔPtie +1/ b.Δf
 ACE = ΔPtie + b.Δf
 ACE = ΔPtie - 1/b.Δf
 ACE = ΔPtie - b.Δf

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Power Systems
The arc voltage produced in an AC circuit breaker is always

 in phase opposition with the arc current.
 lagging the arc current by 90°.
 leading the arc current by 90°.
  in phase with the arc current.

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Power Systems
Which of the following plants has the maximum eapital cost

 Diesel plants.
  Nuclear plants.
 Hydro-plants.
 Steam plants.

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Power Systems
Ideal plant load cfactor is

 0
 1
 less than 1
 greater than 1

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