Nuclear Power Plant - Nuclear Power plant Objective Questions and Answers


11. The function of a moderator in a nuclear reactor is......


   A.To slow down the fast moving electrons

   B.To speed up the slow moving electron

   C.To start the chain reaction

   D.To transfer heat produced inside the reactor to a heat exchanger


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A.To slow down the fast moving electrons

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12. When nuclear reactor is operating at constant power the multiplication factor is........


   A.Equal to unity

   B.More than unity

   C.Leass than unity

   D.None of the above


✔ View Answer


B.Equal to unity

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13. In a nuclear reactor function of reflector is to......


   A.Reduce the speed of the neutrons

   B.Stop the chain reaction

   C.Reflect the escaping neutrons back into the core

   D.None of the above


✔ View Answer


C.Reflect the escaping neutrons back into the core

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14. In a gas cooled rector(GCR).......is used as moderator and coolant respectively


   A.Heavy water and CO2

   B.Graphite and CO2

   C.Graphite and air

   D.None of the above


✔ View Answer


B.Graphite and CO2

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15. Ina pressuried water reactor (PWR)........


   A.The coolant water is pressurised to work as moderator

   B.The coolant water boils in the core of the reactor

   C.The coolant water is pressurised to prevent boiling of water in the core

   D.None of the above


✔ View Answer


C.The coolant water is pressurised to prevent boiling of water in the core

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