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Power Systems

Power Systems
In Francis turbine runner, the number blades is usually of the order of

 6 - 8.
  16 - 24.
 3 - 6.
 12 - 14.

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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?

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

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Power Systems
Ferranti effect will not occur in which of the following transmission lines

 short transmission lines
 long transmission lines
All of these
 medium transmission lines

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Power Systems
The function of moderator in a nuclear reactor is to

 absorb neutrons.
  stop chain reaction.
  reduce the speed of neutrons.
 reduce temperature.

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Power Systems
A transmission line has 50 km operating at frequency of 500 Hz. Find the type of the line?

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

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Power Systems
The flow duration curve at a given head of a hydroelectric plant is used to determine

 diversity factor for the plant.
 load factory at the plant.
  total power available at the site.
 total units of energy available.

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