Which of the following can lead to increased fire risk in a residential building?

Poor maintenance of fire exits can significantly increase fire risk in a residential building because it directly affects the ability of residents to safely evacuate in the event of a fire. Fire exits must be accessible, clearly marked, and free from obstructions to ensure that individuals can quickly and safely leave the building when an emergency occurs. If these exits are not properly maintained, it may result in blocked pathways, non-functioning doors, or inadequate signage, all of which can hinder evacuation efforts and increase the likelihood of injury or loss of life during a fire incident.

In contrast, regular inspections of fire safety equipment, proper installation of smoke detectors, and frequent fire drills are all proactive measures that enhance fire safety. These practices help ensure that residents are prepared in case of a fire, that safety equipment is functioning as intended, and that people know the quickest ways to exit the building safely. Therefore, maintaining fire exits is critical to minimizing fire risk, while the other options contribute positively to the overall safety of a residential building.