In liquid metal fast breeder reactor the moderator used is:
Correct answer: D. Not required
- A. Graphite
- B. Heavy water
- C. Boron rods
- D. Not required
Explanation
No moderator is used in the breeder reactor since fast neutrons are more efficient in transmuting U-238 to Pu-239.
This question appeared on the ETEA MDCAT 2014 paper, which you can sit online with every answer explained.
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About Composition of Atomic Nuclei
Atomic nuclei contain positively charged protons and electrically neutral neutrons, collectively called nucleons. Questions use atomic number, mass number and nuclear notation to identify isotopes, isobars and isotones, and may connect nuclear composition with nuclear charge, mass defect, binding energy and the stability of the nucleus.
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