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← ScienceWhich risk increases when heat removal fails during nuclear fission?
A)Fuel cladding oxidation accelerates rapidly✓
B)Boron neutron absorber becomes ineffective
C)Delayed neutron fraction reaches zero
D)Xenon-135 buildup temporarily halts reaction
💡 Explanation
Accelerated fuel cladding oxidation rapidly occurs because radiative decay chain heating continues after prompt fission stops, therefore producing excessive heat and accelerating oxidation reactions rather than other moderation failures, which involve longer timescale effects.
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