Which component of a fire alarm system conveys the alarm to occupants?

• A. Personal flotation device
• B. Alarm notification device
• C. Alarm initiation device
• D. Fire alarm control unit

Answer: (B)

When the system activates, the goal is to alert everyone in the building so they can take action. That alert is delivered by alarm notification devices, such as audible horns or bells and visible strobes or speaker systems. These devices take the signal from the control unit and turn it into a clear, immediate warning for occupants. Initiation devices like smoke detectors or manual pull stations start the alarm, and the Fire Alarm Control Unit coordinates everything, but the actual act of informing people—sound, sight, or both—comes from the alarm notification devices.