Which term best describes the initial evaluation of a scene used to determine if resources are adequate?

• A. The initial quick assessment of the scene
• B. Size up
• C. Situational appraisal
• D. Scene safety check

Answer: (B)

Size up is the process of quickly and continuously evaluating a scene to determine what’s needed and whether you have enough resources to safely and effectively operate. On arrival, you scan for hazards, structural conditions, access and egress routes, utilities, and the overall demands of the situation, then compare those needs to what you have—personnel, equipment, and specialized teams. This assessment guides the incident action plan and helps you decide if more resources must be ordered or if current assets are sufficient, and you update it as conditions change.

The other phrases describe parts or alternatives of the process but don’t capture the full, standardized assessment that also centers on resource adequacy. A quick assessment can be similar, but size up is the established term that encompasses the scope and ongoing nature of evaluating both scene conditions and resource needs. Scene safety checks focus narrowly on hazards, while situational appraisal is a more general phrase not specific to the US&R resource-determination context.