What is the purpose of a pre-entry size-up of equipment and atmosphere?

• A. To verify readiness, identify hazards, and ensure equipment and air status are adequate for entry.
• B. To check fuel levels of the vehicle.
• C. To test the camera on gear.
• D. To rehearse radio communications only.

Answer: (A)

Ensuring you are ready to enter safely is the main idea behind a pre-entry size-up of equipment and atmosphere. This quick, focused check looks at what’s outside and inside the entry to determine if conditions are workable and what hazards might be present. It means confirming that the team’s gear is complete and functioning, that the breathing air supply is sufficient for the planned entry duration, and that detectors, regulators, and other SCBA components are ready to perform. With this information, you can decide if entry can proceed, needs modification, or should be delayed.

While tasks like checking vehicle fuel, testing camera gear, or rehearsing radio calls can be part of overall readiness, they don’t address the core purpose of assessing whether you’re physically able to enter, what dangers you’ll face, and whether your equipment and air will support safe entry.