Which description best defines fire sprinkler systems?

• A. HVAC control systems
• B. Lighting and power systems
• C. Systems designed for fire detection and control
• D. Water purification systems

Answer: (C)

Fire sprinkler systems are part of a building’s fire protection strategy. Their main purpose is to automatically release water to control and suppress a fire, slowing its growth and helping to protect occupants and property. They are not HVAC control systems, not lighting and power systems, and not water purification systems. While many sprinkler systems connect to alarms and detection networks so people can be alerted, the defining idea among the options is that these systems are designed for fire detection and control through automatic water release, which is the core function of fire protection in NFPA 13R for low-rise residences.