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Mechanical Engineering Objective Questions { Nuclear Power Plants }



36. In nuclear fission
A.The original elements change into completely different elements
B.The electrons of the element change
C.The molecules rearrange themselves to form other molecules
D.None of the above

37. Reflector in nuclear plants is used to
A.Return the neutrons back into the core
B.ShIeld the radioactivity completely
C.Check pollution
D.Conserve energy

38. A fast breeder reactor uses following as fuel
A.Enriched uranium
B.Plutonium
C.Thorium
D.U235

39. A boiling water reactor uses following as fuel
A.Enriched uranium
B.Plutonium
C.Thorium
D.U238

40. A fast breeder reactor
A.Uses graphite rods as moderator
B.Has powerful moderator
C.Has no moderator
D.Uses ferrite material as moderator

41. Breeder reactor has a conversion ratio of
A.Unity
B.More than unity
C.Less than unity
D.Zero

42. The energy required to be applied to a radioactive nucleus for the emission of a neutron is
A.1 MeV
B.2.4 MeV
C.4.3 MeV
D.7.8 MeV

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