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Which outcome occurs within a nuclear reactor when control rods are fully removed?

A)Neutron moderation decreases exponentially.
B)Fission reactions increase exponentially.
C)Gamma radiation emission decreases.
D)Coolant temperature stabilizes immediately.

💡 Explanation

Withdrawn control rods reduce neutron absorption; the increase in neutron population generates more uranium fission events because the neutron multiplication factor rises above 1, therefore self-sustaining exponential growth becomes possible, rather than controlled reaction rates.

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