A fast breeder reactor employs___________________?
Correct answer: D. U-235 as fuel
- A. Graphite as moderator
- B. Water as coolant
- C. Molten sodium as coolant as well as moderator
- D. U-235 as fuel
Explanation
Fast breeder reactors use fast neutrons and therefore do not require a moderator; liquid sodium is commonly used as the coolant. Uranium-235 can serve as the fissile fuel, although plutonium fuels are also widely used.
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