🔍 Key Concepts

• water fog vs. straight stream and how each affects heat, smoke, and steam • proper door-entry technique when opening a hot compartment on fire • how to protect the entry point and firefighters without pushing fire deeper into the space

💭 Think About

• Think about what happens when you open a door to a hot, confined fire: what risks increase suddenly for the firefighters at the doorway? • Which nozzle pattern is better for cooling hot gases and pushing flames away from the door, without driving the fire deeper into the compartment? • If you direct a straight stream into a hot enclosed space, what can it do to the burning materials and the smoke layer?

✅ Before You Answer

• Verify which method is recommended to control flames and hot gases at the doorway of an enclosed fire before entry. • Consider which option could spread the fire or create dangerous steam conditions inside the compartment. • Eliminate any choice that focuses on something not critical to initial entry safety (ask: does this action directly help make the doorway and interior safer to enter?).