Are both audible and visual alarm indications required to be supervised?

Are both audible and visual alarm indications required to be supervised?

• A. False
• B. True
• C. Only audible
• D. Only visual

Answer: (B)

Supervision means the system continuously monitors devices and their wiring so faults are detected and reported. In a fire alarm system, every notification appliance that can warn occupants—whether it emits sound or provides a visible indication—needs to be supervised. This guarantees that if a horn fails to sound or a strobe fails to flash due to a fault, the control panel will show a trouble condition and alert maintenance. Without supervising both types, a fault could go unnoticed, leaving occupants unaware of a fire hazard. Therefore, both audible and visual alarm indications are required to be supervised to ensure reliable warning in all areas.

Supervision means the system continuously monitors devices and their wiring so faults are detected and reported. In a fire alarm system, every notification appliance that can warn occupants—whether it emits sound or provides a visible indication—needs to be supervised. This guarantees that if a horn fails to sound or a strobe fails to flash due to a fault, the control panel will show a trouble condition and alert maintenance. Without supervising both types, a fault could go unnoticed, leaving occupants unaware of a fire hazard. Therefore, both audible and visual alarm indications are required to be supervised to ensure reliable warning in all areas.