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Power Systems

Power Systems
Which of following materials can be used as coolant

 Helium.
 Heavy water.
  Any of above.
 CO2.

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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
For variable heads of near about but less than 30 m, which type of turbines is used hydro power plant

 Pelton.
  Kaplan.
 None of above.
 Francis.

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Power Systems
Surge impedance loading of a transmission line can be increased by

 both 1 and 3
 addition of lumped inductance in parallel
 addition of lumped capacitance in series
 increasing its voltage level

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Power Systems
Maximum power transfer capability of transmission line can be increased by

All of these
 Using bundled conductors
 Parallel transmission lines
 Using series capacitance

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Power Systems
Which one of following is employed as a moderator by CANDU type of slow thermal nuclear reactors

 Graphite.
 Beryllium.
 Water.
  Heavy water.

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