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← ScienceWhich consequence results when control rods fail during power adjustments initiating nuclear fission?
A)Uncontrolled supercriticality leading to higher power✓
B)Moderator decomposition halting chain reactions totally
C)Fuel enrichment falls; reaction stops completely
D)Cladding corrosion accelerates releasing coolant quickly
💡 Explanation
Uncontrolled supercriticality occurs because a failure would prevent neutron absorption via neutron moderation, setting in motion a divergent chain reaction therefore power increases, rather than merely stopping it or causing cladding effects at lower power levels.
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