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← ScienceWhich consequence results following prompt criticality in PWR?
A)Uncontrolled chain reaction escalation✓
B)Stable sustained power output
C)Moderator temperature coefficient shift
D)Xenon-135 concentration build-up
💡 Explanation
Prompt criticality causes rapid, uncontrolled escalation of the fission chain reaction due to prompt neutrons dominating, initiating nearly instantaneous fission bursts. Therefore, runaway power increase occurs rather than stability, because this disregards delayed neutrons.
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