What is the primary role of a fire alarm system?

The primary role of a fire alarm system is to detect smoke and fire, thereby alerting both building occupants and emergency services. This function is crucial for ensuring the safety of individuals in the building by providing timely warnings that allow for evacuation and prompt emergency response.

When a fire alarm system detects smoke, heat, or fire, it activates audible and visible alarms, making sure that everyone is aware of the danger. This early detection and alert system is vital for minimizing harm, as it gives occupants the chance to exit the building safely and helps firefighters quickly locate and address the source of the fire.

The other options, while related to building safety and management, do not align with the fundamental purpose of a fire alarm system. Fire alarms are not designed for entertainment, temperature control, or managing electricity; instead, their sole responsibility is to protect lives and property by ensuring immediate awareness of fire hazards.