Answer :
Final answer:
When a fire is ventilation controlled, opening a door will increase ventilation, providing more oxygen and potentially causing the fire to intensify and spread faster.
Explanation:
If a fire is ventilation controlled, opening a door will result in an increase in ventilation. Additional air entering the space provides more oxygen to the fire, which can cause the fire to grow in intensity and spread more rapidly. Opening a window or door can significantly change the fire's behavior due to the sudden influx of oxygen, which fuels combustion. It’s essential for firefighters to understand this when tackling such fires, as it directly impacts fire suppression strategies and the safety of anyone inside the structure.
