The PASS automatically engages when which condition is met?

The PASS automatically engages when which condition is met?

• A. The user manually presses the alarm button
• B. The user is motionless but the system never activates
• C. The system is turned off
• D. The user is motionless for a period

Answer: (D)

The concept being tested is how the Personal Alert Safety System (PASS) protects a firefighter when they can no longer move. The PASS is designed to automatically go into alarm if the wearer stops moving for a set period. This motionless condition suggests the firefighter may be in trouble—unconscious, trapped, or incapacitated—so the auto-activation helps crew members locate and assist them quickly. The automatic trigger isn’t about the user taking action, like pressing a button, and it isn’t about the system being on or off. If the wearer remains motionless but the unit is turned off, there would be no automatic activation. Likewise, manually pressing an alarm button is a conscious action by the wearer, not the automatic trigger tested here. So, the correct condition is a period of motionlessness, which is exactly when PASS engages to alert others.

The concept being tested is how the Personal Alert Safety System (PASS) protects a firefighter when they can no longer move. The PASS is designed to automatically go into alarm if the wearer stops moving for a set period. This motionless condition suggests the firefighter may be in trouble—unconscious, trapped, or incapacitated—so the auto-activation helps crew members locate and assist them quickly.

The automatic trigger isn’t about the user taking action, like pressing a button, and it isn’t about the system being on or off. If the wearer remains motionless but the unit is turned off, there would be no automatic activation. Likewise, manually pressing an alarm button is a conscious action by the wearer, not the automatic trigger tested here. So, the correct condition is a period of motionlessness, which is exactly when PASS engages to alert others.