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Power Systems

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

 graphite
 beryllium
 liquid sodium
All of these

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Power Systems
Pin insulators are used up to

 any voltage level
 33 kV
 120 kV
 11 kV

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Power Systems
Which of following are the fertile materials

 U233 and Pu239.
 U238 and Pu239.
  U238 and Th232.
 U238 and Th239.

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Power Systems
In a nuclear reactor, chain reactor is controlled by introducing

 brass rods.
 iron rods.
  cadmium rods.
 graphite rods.

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Power Systems
A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix?

 165 × 165
 162 × 162
 163 × 163
 164 × 164

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Power Systems
Skin effect depends on

All of these
 conductivity
 frequency
 relative permeability

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