The fast breeder reactor uses the following moderator
A. Demineralised water
B. Carbon dioxide
C. Heavy water
D. No moderator is used
Answer: Option D
Solution(By Examveda Team)
No moderator is used in the breeder reactor since fast neutrons are more efficient in transmuting U238 to Pu239. At this concentration of U235, the cross-section for fission with fast neutrons is sufficient to sustain the chain-reaction.This Question Belongs to Mechanical Engineering >> Power Plant Engineering
Related Questions on Power Plant Engineering
Reactors for propulsion applications use
A. Natural uranium
B. Molten lead
C. Any form of uranium
D. Thorium
Reactors designed for propulsion applications are designed for
A. Natural uranium
B. Enriched uranium
C. Pure uranium
D. Any type of uranium
Reactors for propulsion applications are designed for
A. Any form of uranium
B. Natural uranium
C. Enriched uranium
D. Plutonium
The size of the reactor is said to be critical when
A. Chain reaction can be initiated
B. It becomes uncontrollable
C. It explodes
D. It produces no power
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