If heavy smoke is observed to be issuing from a partially open door of a paint locker having a CO₂ fire extinguishing system, the FIRST firefighting attack should be to __________.
• Fixed CO₂ flooding systems in enclosed spaces like paint lockers • Dangers of opening doors/vents to a compartment with a suspected fire (air supply, flashover, explosion) • Correct sequence of actions before releasing a total-flooding gas extinguishing system
• What happens to a fire in an enclosed space if you open doors and vents wider before using CO₂? Think about oxygen and fire growth. • For a CO₂ flooding system to be effective, what condition must the compartment be in (doors/vents) when you release it? • Which options would expose personnel directly to smoke and possible flame spread, and which option keeps people out of the hazard area?
• Verify what must be done to boundaries (doors, hatches, ventilation) of a space before releasing a fixed CO₂ system. • Check which choice best protects personnel from entering a potentially explosive/smoke-filled compartment. • Confirm which action preserves the integrity of the space so the CO₂ concentration can build up and stay effective.
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