Name three common fire protection systems found in most buildings.

• A. Automatic sprinkler system, fire alarm/detection system, and standpipe/water supply for firefighting.
• B. Elevator hoist system, HVAC heat exchangers, and glass storefronts.
• C. Cable television, public address, and decorative lighting.
• D. Building automation for energy only.

Answer: (A)

Three common fire protection systems found in most buildings are an automatic sprinkler system, a fire alarm and detection system, and a standpipe/water supply for firefighting. An automatic sprinkler system provides immediate, localized fire control by releasing water through heads heated by the fire, which helps limit growth and protect lives and property. A fire alarm and detection system senses smoke, heat, or flames and then alerts occupants and, often automatically, the fire department, enabling quick evacuation and a faster response. A standpipe system gives firefighters inside the building a ready source of water with appropriate pressure, which is especially important in taller buildings or where external water access is limited.

These three work together to detect and warn people, automatically suppress or slow a fire, and provide a reliable water supply for firefighters. The other options describe systems that aren’t primarily fire protection systems—elevator systems, HVAC components, glass storefronts, communications, or energy-focused building automation—so they aren’t considered core fire protection systems, even though some may influence overall safety in other ways.