A ________ _________ must be established adjacent to any exposed exterior walls of the structure.

• A. Collapse Zone
• B. Safety Perimeter
• C. Exclusion Area
• D. Hazard Zone

Answer: (A)

The concept being tested is protection from falling structure during collapse. A collapse zone is the area around a structure that could be impacted if it fails, and it must be established adjacent to exposed exterior walls because those walls are the most likely surfaces to fail outward. Keeping this zone clear prevents firefighters and equipment from being struck by falling debris as the building gives way. The size of the collapse zone is based on the building’s height and construction, plus a safety margin, to ensure enough distance is maintained from the potential failure area. Other terms like safety perimeter, exclusion area, or hazard zone describe general scene control or hazardous areas, but they do not specifically designate the zone around potential exterior-wall collapse.