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Power Systems

Power Systems
Which of the following materials is/are used as moderators?

 graphite
 heavy water
All of these
 beryllium

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Power Systems
Surge impedance loading of a 3-phase, 400 kV transmission line is 400 Ω. The surge impedance loading is

 800 MW
 200 MW
 400 MW
 1600 MW

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Power Systems
Surge impedance loading (SIL) is represented by

 both 1 and 2
 Vph²/Zs
 Vl²*√(C/L)
 Vl²/Zs

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Power Systems
At slack bus, which one of the following combinations of variables is not specified?

 V and δ
 Q and V
 P and Q
 P and V

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Power Systems
In nuclear power plants which material is/are used as coolant?

 graphite
All of these
 beryllium
 liquid sodium

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Power Systems
Uses of diesel power stations

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

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