Power Systems
In a nuclear reator thermal energy is obtained from

  fission of radioactive material.
 fusion of radioactive material.
 burning of fuel rods in oxygen.
 all of above.

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Power Systems
Which of following statement are false

 A thermal reactor needs a moderator material.
  Nuclear power plants are used as peak load plants only.
 In nuclear power plants, chain reaction is controlled by cadmium rods.
 In a nuclear reactor, multiplication factor is kept almost equal to one.

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