Why should a CO2 extinguisher be used with caution in confined areas?
Direct Answer
Option C: It will displace the air and reduce the amount of oxygen available
Carbon dioxide extinguishes fires by displacing ambient oxygen and lowering concentrations below the threshold required to sustain combustion. In confined spaces, this rapid displacement creates an immediate asphyxiation hazard for personnel.
All Options
Detailed Explanation & Context
Carbon dioxide extinguishes fires by displacing ambient oxygen and lowering concentrations below the threshold required to sustain combustion. In confined spaces, this rapid displacement creates an immediate asphyxiation hazard for personnel.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Advanced Fire Fighting (RAFF).
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