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Power Systems

Power Systems
Which one of following fuels is used by slow thermal nuclear reaction for power generation

 Pu239.
 U238.
  U235.
 Th232.

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Power Systems
The zero sequence current of a generator for line to ground fault is j3 pu. Then the current through the neutral during the fault is

 j3 pu
 j9 pu
 j6 pu
 j1 pu

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

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

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Power Systems
Frequencies must be same in which of the following line to exchange the power from one place to other place ?

 No need of same frequency for exchange of power
 Asynchronous line
 Synchronous line
 both 1 and 2

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Power Systems
Pelton wheel turbine is a

  high head turbine.
  medium head turbine.
  none of above.
  low head turbine.

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Power Systems
The power output from an hydroelectric plants depend on

 type of dam, type of catchment area and discharge.
 type of dam, head, system efficiency.
  discharge, system efficiency.
 type of turbine, type of dam and type of catchment area.

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