What should be examined when inspecting a residential smoke detector?

Focusing on the correct choice, examining a residential smoke detector should include checking that it is properly wired, has a functioning battery backup, and is installed in an appropriate location. Proper wiring is essential to ensure that the detector can connect to the home’s electrical system, which is crucial for its functionality. Additionally, having a battery backup is important, as it ensures that the smoke detector will still operate during power outages, providing crucial safety even when the home lacks electricity.

The installation location also plays a significant role in effectiveness. Smoke detectors must be placed in strategic areas, such as near sleeping areas and on every level of the home, to provide the best protection. This awareness of proper installation locations can help prevent property loss and save lives.

Other options focus on less critical factors. Confirming the brand and model may be necessary for warranty issues but does not impact the detector's operational effectiveness. Ensuring that the smoke detector is the latest model available isn't essential for safety as older models can still function adequately if they are regularly tested and maintained. Lastly, verifying the color and aesthetic appeal is not relevant to the functionality of a smoke detector, which should always be the primary concern during an inspection.