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Power Systems

Power Systems
Cheapest plant in operation and maintenance is

  diesel power.
  nuclear.
  steam power.
  hydroelectric.

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Power Systems
Proximity effect depends on

 relative permeability
 distance between the conductors
All of these
 frequency

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Power Systems
In nuclear chain fission reaction each neutron causing fission produces

 no new neutron.
  at least one new neutron.
 one new neutron.
 less than one new neutron.

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Power Systems
A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively?

 30° and 26°
 45° and 26°
 30° and 45°
 26° and 30°

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

 Water.
 Beryllium.
 Graphite.
  Heavy water.

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Power Systems
In load flow studies PV bus is treated as PQ bus when

 reactive power goes beyond limit
 phase angle become high
 voltage at the bus become high
 any of the above

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