What is true regarding operations in a fire building with limited visibility?

Crawling helps avoid hot gas layers, which is crucial in a fire building with limited visibility. When a fire occurs, hot gases and smoke rise, creating an increasingly dangerous environment at higher levels. By staying close to the ground, firefighters can navigate through the cooler, cleaner air found closer to the floor, thus reducing their risk of heat exposure and smoke inhalation. This technique is vital for maintaining situational awareness despite poor visibility and helps in preserving the firefighter's physical well-being while conducting their operations.

Using flashlights can indeed enhance visibility, but it is not strictly essential as there are scenarios where firefighters may need to operate without them. Standing can place a firefighter in hotter air and increase their risk of injury. Additionally, while it is important for firefighters to be equipped with appropriate skills and knowledge, it doesn't mean that only experienced firefighters can enter. Firefighting strategies often involve teamwork and collaboration, allowing less experienced personnel to work under the guidance of seasoned firefighters.