Which device allows occupants to manually trigger an alarm at an exit?

• A. Manual pull stations
• B. Smoke detectors
• C. Heat detectors
• D. Waterflow switch

Answer: (A)

Manually initiating the fire alarm at an exit is about how occupants trigger the system themselves rather than the system sensing danger automatically. A manual pull station is designed for people to activate the alarm by pulling a lever or handle near an exit. This action immediately sends a signal to the fire alarm control panel and sounds the alert for occupants and responders.

Smoke detectors and heat detectors are automatic initiating devices; they trigger the alarm when they sense smoke or high temperature, without someone pulling anything. A waterflow switch is part of the sprinkler system and activates the alarm when water actually flows, which also happens automatically.

So, the device that lets people at an exit manually trigger the alarm is the pull station.