Molten sodium is used as a coolant in a fast breeder reactor, because of its_________________?
Correct answer: C. Faster heat removal capability from the core
- A. Excellent moderating properties
- B. Neutron breeding capability
- C. Faster heat removal capability from the core
- D. Capability to increase the reaction rate in the core
Explanation
Liquid sodium has excellent thermal conductivity and heat-transfer performance, allowing rapid removal of core heat. It is selected for heat removal, not neutron moderation, because a fast breeder reactor must preserve fast neutrons.
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