What is the function of a PASS device on the fire ground?

• A. To alert others if a firefighter is motionless or in distress, enabling rapid rescue
• B. To monitor air quality
• C. To control radio communications
• D. To record time spent inside the structure

Answer: (D)

A PASS device is meant to protect firefighters by providing a rapid distress signal when someone is motionless or in trouble, so teammates can locate and rescue them quickly. It uses motion sensing and will emit a loud alarm (and sometimes a light) if the wearer stops moving for a preset period, or can be activated manually if a firefighter is in distress. It’s not designed to monitor air quality, control radio communications, or record time spent inside the structure.