Which fire prevention measure should be taken in residential buildings?

The installation of smoke detectors in all sleeping areas is vital for residential fire prevention. Smoke detectors serve as an early warning system, alerting occupants to smoke and fire, which can significantly enhance the chances of escape and survival during a fire incident. Their placement in sleeping areas is particularly crucial because people are often less aware of fire hazards while they are asleep.

Having smoke detectors installed throughout the home, especially in places where individuals commonly sleep, ensures that alarms will sound immediately if a fire breaks out, allowing time for residents to react and evacuate safely. Regular maintenance and testing of these detectors are also essential to ensure they function properly when needed.

In contrast, while the installation of fire hydrants is important for firefighting capabilities, it does not directly prevent fires within a residential setting. Regular evacuation drills can enhance preparedness but may not be as practical or necessary for private residences as they would be for public or commercial buildings. Ensuring that electrical wiring is visible doesn't directly contribute to fire prevention—rather, proper installation and maintenance of wiring are more critical to avoid potential fire hazards.