Which device is designed to help locate a wearer in distress by emitting an audible alarm?

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Multiple Choice

Which device is designed to help locate a wearer in distress by emitting an audible alarm?

Explanation:
The device that is designed to help locate a wearer in distress by emitting an audible alarm is the Personal Alert Safety System. Worn on the SCBA, it automatically sounds a loud alert if the wearer stops moving for a preset period or if the wearer manually activates it. This audible signal helps teammates quickly locate and reach the distressed firefighter in smoky or low-visibility conditions. The regulator, purge valve, and facepiece, by contrast, are part of the breathing air system and do not provide a distress alarm.

The device that is designed to help locate a wearer in distress by emitting an audible alarm is the Personal Alert Safety System. Worn on the SCBA, it automatically sounds a loud alert if the wearer stops moving for a preset period or if the wearer manually activates it. This audible signal helps teammates quickly locate and reach the distressed firefighter in smoky or low-visibility conditions. The regulator, purge valve, and facepiece, by contrast, are part of the breathing air system and do not provide a distress alarm.

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