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In natural uranium, the constituents of three naturally occuring isotopes are

A. U₂₃₄ = 0.006%, U₂₃₅ = 0.712% and U₂₃₈ = 99.282%

B. U₂₃₄ = 0.712%, U₂₃₅ = 0.006% and U₂₃₈ = 99.282%

C. U₂₃₄ = 99.282%, U₂₃₅ = 0.006% and U₂₃₈ = 0.712%

D. U₂₃₄ = 0.006%, U₂₃₅ = 99.282% and U₂₃₈ = 0.712%

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  2. Solid fuel for nuclear reactions may be fabricated into various small shapes such as
  3. Enriched uranium may contain fissionable contents of the order of
  4. Superheated steam is generated in following reactor
  5. When a reactor becomes critical, then the production of neutrons is
  6. The nuclear energy is measured as
  7. In triggering fission, the following types of neutrons are desirable
  8. The energy produced by a thermal reactor of same size as a breeder reactor is
  9. Half life of a radioactive isotope corresponds to the time required for half of the following to decay
  10. The mass number of a substance represents the sum of total number of
  11. A pressurised water reactor employs pressurises for the following application
  12. The efficiency of a nuclear power plant in comparison to conventional and nuclear consideration is
  13. In a thermal power plant, coal from the coal handling plant is moved to the boiler bunker through a
  14. Artificial radioactive isotopes find application in
  15. Ferrite material is
  16. A moderator
  17. A nuclear fission produces energy of following order in MeV
  18. The material most commonly used for shielding is
  19. Hydrogen is preferred as better coolant in comparison to CO₂ because former
  20. A reactor capable of converting a ferrite material into fissile isotopes is called
  21. Which of the following is more appropriate for a moderator? One which
  22. The size of the reactor is said to be critical when
  23. Pressurised water reactor is designed
  24. The function of control rods in nuclear plants is to
  25. The following present serious difficulty in designing reactor shield
  26. The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is
  27. Reactors for propulsion applications are designed for
  28. The main interest of shielding in nuclear reactor is protection against
  29. Breeder reactor has a conversion ratio of
  30. In the breeder reactors the generation of new fissionable atom is