VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesScienceQuestion
Question
Science

Which disruptive outcome during a rapid nuclear reactor SCRAM event results when control rods fail and fuel geometry is altered?

A)Delayed neutron super-criticality develops locally
B)Radiation shielding degrades asynchronously over time
C)Xenon-135 poisoning accelerates fission rates
D)Moderator density shifts profile neutron energies

💡 Explanation

Delayed neutrons cause super-criticality because of uncontrolled positive reactivity insertion; the uncontrolled fission occurs because fuel pellet relocation has occurred, therefore excess power is produced rather than steady-state, because redistribution creates reactivity pockets.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse Science