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- Master (Oceans or Near Coastal (Uninspected Fishing Industry Vessel)) »
- Q181 - Deck Safety
152. You are releasing carbon dioxide gas (CO2) into an engine compartment to extinguish a fire. In which situation will the CO2 be most effective?
CO2 is most effective in a closed, airtight compartment because it requires a concentrated displacement of oxygen to extinguish the fire; ventilation or openings allow gas escape and oxygen replenishment, preventing sufficient concentration for fire suppression.
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