Which term best describes a proper size-up performed by making a complete circle around the incident scene?

• A. Conducting a quick interior check
• B. Executing a rapid exterior survey
• C. Initiating a 360-degree assessment
• D. Doing a 360

Answer: (D)

Performing a full 360-degree size-up around the incident scene provides a complete view of conditions on all sides, including entry points, potential hazards, exposures, and access routes. The best term to describe this action is doing a 360 because it is the concise, standard way firefighters refer to walking completely around the exterior to assess everything around the building before deciding on tactics. A quick interior check happens inside the structure and doesn’t cover the exterior scene. A rapid exterior survey is similar in purpose but not the established phrase for the full-circle evaluation. A 360-degree assessment conveys the same idea in more formal wording, but on scene most crews use the shorthand, doing a 360, to indicate a thorough exterior walkthrough.