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Total Questions : 807 | Page 2 of 81 pages
Question 11. U238 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 A. ->  High energy (fast) neutrons alone
Explanation :
Question 12. 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
Explanation :
Question 13. 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
Explanation :
Question 14. U238 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 A. ->  High energy (fast) neutrons alone
Explanation :
Question 15. Each fission of u₂₃₅ produces following number of fast neutrons per fission
  1.     1 neutron
  2.     3 neutrons
  3.     1, 2 neutrons
  4.     2 neutrons
 Discuss Question
Answer: Option D. ->  2 neutrons
Explanation :
Question 16. Each fission of u₂₃₅ produces following number of fast neutrons per fission
  1.     1 neutron
  2.     3 neutrons
  3.     1, 2 neutrons
  4.     2 neutrons
 Discuss Question
Answer: Option D. ->  2 neutrons
Explanation :
Question 17. Each fission of u₂₃₅ produces following number of fast neutrons per fission
  1.     1 neutron
  2.     3 neutrons
  3.     1, 2 neutrons
  4.     2 neutrons
 Discuss Question
Answer: Option D. ->  2 neutrons
Explanation :
Question 18. U233 is produced
  1.     As basic raw material
  2.     By neutron irradiation of Uz
  3.     By neutron irradiation of thorium
  4.     Artificially
 Discuss Question
Answer: Option C. ->  By neutron irradiation of thorium
Explanation :
Question 19. U₂₃₃ is produced
  1.     Artificially
  2.     As basic raw material
  3.     When thorium is irradiated by neutrons
  4.     By fission of U₂₃₈
 Discuss Question
Answer: Option C. ->  When thorium is irradiated by neutrons
Explanation :
Question 20. Plutonium (pu₂₃₉) is produced
  1.     Artificially
  2.     By fission of Th₂₃₂
  3.     When U₂₃₈ is irradiated by neutrons
  4.     As basic raw material
 Discuss Question
Answer: Option C. ->  When U₂₃₈ is irradiated by neutrons
Explanation :

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