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Which risk increases when neutron absorbent material degrades within a nuclear reactor's control rods?

A)Increased probability of chain reaction
B)Elevated decay heat production
C)Reduced coolant boiling temperature
D)Decreased gamma radiation shielding

💡 Explanation

Increased likelihood of uncontrolled chain reaction results because neutron moderation decline leads to a positive feedback loop affecting the fission rate. Therefore, the reactor could become supercritical, rather than maintaining stable operation, because too many neutrons available to propagate fission.

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