Heat is generated in a nuclear reactor (thermal) by_________________?
Correct answer: D. Fission of U-235 by neutrons
- A. Combustion of a nuclear fuel e.g. uranium
- B. Fusion of atoms of uranium
- C. Absorption of neutrons in uranium atoms
- D. Fission of U-235 by neutrons
Explanation
A thermal reactor produces heat mainly through the fission of U-235 after absorption of neutrons. Combustion and fusion are not the mechanisms used in an ordinary uranium-fuelled thermal reactor.
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