Power Systems
Which of following statement are false

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

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Power Systems
Gas coolled reactor

 use CO2. or helium as coolant and graphite the moderator.
 use heavy water as coolant as well as moderator.
  both B and C.
 use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c.

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