Construction Supervisor License Practice Exam

Which statement regarding carbon monoxide detectors in one- and two-family dwellings is true?

1. One detector is to be installed each level every 1000 ft² of floor area

2. One detector must be on every building level

3. Detectors are not required; smoke detectors are required

4. Detectors are only required outside of bedrooms

The correct answer is: One detector must be on every building level

The requirement for carbon monoxide detectors in one- and two-family dwellings is that there must be at least one detector on every building level. This is crucial for safety, as carbon monoxide is a colorless, odorless gas that can be lethal and is produced by combustion appliances. By ensuring that there is a detector on every level, the likelihood of detecting unsafe levels of carbon monoxide increases, thereby protecting the occupants more effectively. While there are guidelines for the installation of smoke detectors, the specific requirement for carbon monoxide detectors emphasizes their placement on each level to ensure comprehensive coverage throughout the home. Regulations vary by jurisdiction, but the primary goal is to safeguard residents from the dangers of carbon monoxide exposure.