If detectors are present on the main level hallway and in an unfinished basement, which location is commonly missing in a residential setting?

• A. Inside the bedrooms
• B. In the kitchen
• C. In the garage
• D. In the attic

Answer: (A)

The main idea is that smoke alarm coverage should reach the sleeping areas so occupants hear the warning even if a door is closed at night. If detectors are only on the main level hallway and in the unfinished basement, a fire starting in a bedroom could go undetected for too long because the alarm might not be heard inside the room with the door shut. Placing a detector inside each bedroom provides early warning where people sleep, which is why this location is commonly missing in many homes and why it’s emphasized in safety guidance.

Kitchen detectors are avoided because cooking smoke often causes nuisance alarms, and detectors in garages or attics aren’t typical for everyday residential coverage and aren’t as effective for immediate sleeping-area warning.