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Total Questions : 807 | Page 79 of 81 pages
Question 781. 6. The fast breeder reactor uses the following moderator
  1.    Demineralised water
  2.    No moderator is used.
  3.    Heavy water
  4.    Graphite
 Discuss Question
Answer: Option B. -> No moderator is used.
Question 782. 5. A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is
  1.    Same
  2.    More
  3.    Less
  4.    There is no such criterion
 Discuss Question
Answer: Option B. -> More
Question 783. 4. The process by which a heavy nucleus is splitted into two light nuclei is known as
  1.    Splitting
  2.    Fission
  3.    Fusion
  4.    Disintegration
 Discuss Question
Answer: Option B. -> Fission
Question 784. 3. A nuclear fission produces energy of following order in MeV
  1.    20
  2.    200
  3.    2000
  4.    20000
 Discuss Question
Answer: Option B. -> 200
Question 785. 7. The first unclear power plant in India is located at
  1.    Kota
  2.    Kalapakkam
  3.    Tarapur
  4.    Baraeilly
 Discuss Question
Answer: Option C. -> Tarapur
Question 786. 8. The nuclear power plant at Tarapur has the following reactor
  1.    Fast breeder
  2.    Pressurised water
  3.    Boiling water
  4.    Sodium graphite
 Discuss Question
Answer: Option C. -> Boiling water
Question 787. 9. Boiling water reactor uses the following as moderator, coolant and working fluid
  1.    Ordinary fluid
  2.    Heavy water
  3.    Molten lead
  4.    Hydrogen gas
 Discuss Question
Answer: Option A. -> Ordinary fluid
Question 788. 1. Enriched uranium may contain fissionable contents of the order of
  1.    1-99%
  2.    1-25%
  3.    1-50%
  4.    1-75%
 Discuss Question
Answer: Option A. -> 1-99%
Question 789. 0. Ideally the neutron flux in reactor should be
  1.    Maximum in centre and zero at side
  2.    Maximum at side and zero in centre
  3.    Uniform throughout
  4.    Zero throughout
 Discuss Question
Answer: Option C. -> Uniform throughout
Question 790. 2. U235 will undergo fission by
  1.    High energy (fast) neutrons alone
  2.    Low energy (slow) neutrons alone
  3.    Either fast or slow neutrons
  4.    Medium energy neutrons
 Discuss Question
Answer: Option C. -> Either fast or slow neutrons

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