Which device is represented by the symbol for a manual fire alarm box?

Which device is represented by the symbol for a manual fire alarm box?

• A. Manual fire alarm box
• B. Photoelectric spot type smoke detector
• C. Pre-action sprinkler
• D. Photoelectric duct smoke detector

Answer: (A)

The symbol in question identifies a manual pull station, a manual fire alarm box. This device is a manual initiation point you activate by pulling a handle to start the building’s fire alarm system. It’s designed to be easily reachable near exits so occupants can trigger alarms if they detect a fire. When activated, it sends a signal to the fire alarm control panel, which drives the audible and visual alerts throughout the building. This is different from detectors that sense smoke automatically, or sprinkler components that operate as part of a suppression system. So the symbol represents the manual fire alarm pull station itself.

The symbol in question identifies a manual pull station, a manual fire alarm box. This device is a manual initiation point you activate by pulling a handle to start the building’s fire alarm system. It’s designed to be easily reachable near exits so occupants can trigger alarms if they detect a fire. When activated, it sends a signal to the fire alarm control panel, which drives the audible and visual alerts throughout the building. This is different from detectors that sense smoke automatically, or sprinkler components that operate as part of a suppression system. So the symbol represents the manual fire alarm pull station itself.