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← ScienceWhich consequence results when insufficient moderator exists in fission?
A)Neutron absorption decreases, stopping fission
B)Chain reaction slows, fuel consumption decreases
C)Fuel rods overheat, coolant vaporizes explosively
D)Prompt criticality escalates energy exponentially✓
💡 Explanation
Prompt criticality results from deficient moderation because delayed neutrons initiate rapid fission, creating immense energy release. This leads to temperature spikes and potential meltdowns, rather than slow the fission process; moderation is key.
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