Which outcome occurs when a nuclear reactor initially exceeds criticality?

💡 Explanation

Neutron flux increases exponentially because reactor criticality means the neutron production rate from fission exceeds the loss rate; therefore power increases significantly, rather than a direct meltdown given system inertia and control mechanisms.

• Which outcome diminishes a fusion reactor's energy output due to helium-4 production?
• Which mechanism limits pressure rise due to energy equivalence in boosted combustion?
• Which limitation dictates maximum efficiency of a Carnot heat engine operating between two thermal reservoirs?
• Which risk increases when a Carnot engine with fixed thermal reservoirs approaches reversible operation?
• Which risk increases during sustained fusion reactor operation?
• Which risk increases significantly when turbulence disrupts phased array radar?