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The main interest of shielding in nuclear reactor is protection against

A. X-rays

B. Infrared rays

C. Neutrons and gamma rays

D. Electrons

Correct Answer : D.


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  1. Breeder reactor has a conversion ratio of
  2. In nuclear fission each neutron that causes fission releases
  3. Which is not identical for an atom and an isotope?
  4. The commonly used material for shielding is
  5. The total energy released in fission of U is
  6. Electron volt is the unit of
  7. The most practical fuel for a thermonuclear reactor, both from economical and nuclear consideration…
  8. A fission chain reaction in uranium can be developed by
  9. U233 is produced
  10. Pressurised water reactor is designed
  11. A power plant giving least running cost of production of electrical power is
  12. The energy produced by a thermal reactor of same size as a breeder reactor is
  13. The risk of radioactive hazard is greatest in the turbine with following reactor
  14. The fuel needed, with reflector in nuclear power plant, in order to generate sufficient neutrons to…
  15. Artificial radioactive isotopes find application in
  16. In the breeder reactors the generation of new fissionable atom is
  17. Superheated steam is generated in following reactor
  18. Which of the following statement is correct regarding the features of a Breeder reactor?
  19. A reactor capable of converting a ferrite material into fissile isotopes is called
  20. Half life of a radioactive isotope corresponds to the time required for half of the following to decay
  21. In natural uranium, the constituents of three naturally occuring isotopes are
  22. The process by which a heavy nucleus is spitted into two light nuclei is known as
  23. The unit of radioactivity is
  24. U₂₃₃ is produced
  25. Plutonium (Pu239) is produced
  26. The size of the reactor is said to be critical when
  27. The control rods in the control system of nuclear reactors are used to
  28. In fast breeder reactors
  29. Atomic number of an element in the periodic table represents the numbers of
  30. One gram of uranium will produce energy equivalent to approximately