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Power Systems

Power Systems
Pumped storage plant is a

None of these
 both 1 and 2
 peak load plant
 base load plant

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Power Systems
For 800 MJ stored energy in the rotor at synchronous speed, what is the inertia constant H for a 50 Hz, four pole turbo generator rated 100 MVA, 11 kV?

 6 MJ/MVA
 2 MJ/MVA
 8 MJ/MVA
 4 MJ/MVA

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Power Systems
Uses of diesel power stations

All of these
  emergency plants.
 standby plants.
  peak load plant.

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Power Systems
A transmission line has 200 km operating at frequency of 10 Hz Hz. Find the type of the line

 short transmission line
 medium transmission line
 long transmission line
 any of the above

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Power Systems
Isolator in sub station is open under ------------- condition?

 full load
 any of the above
 no load
 short circuit

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Power Systems
For transmission line which one of the following relation is true?

 AD - BC = 0
 AD - BC = 1
 AD + BC = 0
 AD - BC = -1

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