Final answer:
During a fire, additional precautions must be taken when entering an enclosed fire area to prevent the fire from resuming rapidly and to avoid the risk of explosion caused by fresh oxygen feeding the hot gases.
Step-by-step explanation:
During a fire, additional precautions must be taken when entering an enclosed fire area because:
- Fire can resume rapidly if air is introduced when the door is opened: When fresh air is introduced to a fire, it can cause the fire to reignite and spread more rapidly, posing a greater risk to the individuals inside.
- Fresh oxygen feeds the hot combustible gases and can result in an explosion: When fresh oxygen is introduced to a fire, it can react with the hot combustible gases, leading to a potential explosion, which can cause serious injuries or even death.
It is important to take precautions such as checking for smoke, using proper protective equipment, and being aware of hot surfaces (e.g., door handles) to ensure personal safety when entering an enclosed fire area.