112. A safety outlet is provided on the CO₂ discharge piping to prevent __________.

The safety outlet on CO2 discharge piping prevents over pressurization of the piping itself. This device protects the piping system from damage due to excessive internal pressure resulting from rapid discharge, thermal expansion, or blocked lines; cylinder rupture is prevented by cylinder relief devices, and personnel safety is ensured through alarms and procedures, not the discharge piping safety outlet.