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Power Systems

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

 6 - 8.
 3 - 6.
  16 - 24.
 12 - 14.

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Power Systems
Non-commercial sources of energy are

 fossil fuel, hydro power and nuclear power.
  wood, animal wastes and agricultural wastes.
None of these
 solar, wind and biomass.

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Power Systems
For distortion less line which of following relation are true

 None of above.
 R/L = G/C.
 R/L = C/G.
 R = O, G = O.

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Power Systems
Which of the following buses is/are not PV buses?

 both 1 and 2
 fixed shunt capacitor buses
 voltage control buses
 reactive power support buses

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Power Systems
To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with

 3rd harmonic current.
 2nd harmonic current.
 7th harmonic current.
  5th harmonic current.

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Power Systems
The 1st nuclear plant in world was commissioned in

  U.S.A.
  UAE.
 U.K.
  U.S.S.R.

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