Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome increases when a reactor coolant's moderator efficiency declines?
A)Neutron absorption becomes less effective✓
B)Delayed neutron fraction reaches zero
C)Coolant volumetric flow constant rises
D)The critical reaction threshold decreases
💡 Explanation
Neutron absorption decreases because neutron moderation relies on collisions that slow neutrons. The moderator's reduced efficiency causes less neutron slowdown, therefore absorption declines rather than other effects because the collision rate decreases.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which mechanism limits electron mobility within the inversion layer of a MOSFET at high gate voltages?
- Which mechanism primarily limits data transmission distance for high-frequency radio waves in seawater?
- Which phenomenon causes signal attenuation in long undersea fiber optic cables that span thousands of kilometers?
- Which risk increases when optically pumped rubidium vapor lacks polarization control?
- Which process limits the maximum theoretical efficiency of a silicon photovoltaic cell under standard test conditions?
- Which outcome results when hydrostatic stress increases rapidly in viscous solutions?
