Which option best states the general fact about confined fires?

• A. A confined fire cannot be seen
• B. A confined fire can be seen
• C. A confined fire always smokes
• D. A confined fire never causes damage

Answer: (A)

In a confined fire, ventilation is limited, so smoke and hot gases build up quickly and fill the space. That dense smoke blocks view, making the flames hard to see. So the general fact you’re testing is that a confined fire cannot be seen (or is very difficult to see) even though it’s burning. Because visibility is reduced, you often have to rely on heat, odors, sounds, or detection devices to sense and locate the fire. It’s not universal that it’s invisible, but visibility is typically poor in confined spaces, which is what this statement reflects.