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Which risk increases when insufficient binding energy exists within fissile isotopes within a nuclear reactor's fuel pellets?

A)Decreased neutron moderation efficiency occurs
B)Uncontrolled chain reaction becomes likely
C)Increased delayed neutron fraction results
D)Elevated helium production within cladding

💡 Explanation

Insufficient binding energy reduces the energy needed to split the nucleus via neutron capture. A faster, uncontrolled chain reaction therefore becomes likely, rather than slower neutron moderation, because fission products are more probable under such circumstances.

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