California Residential Inspector Practice Exam

Which standard must smoke alarms conform to according to NFPA 72?

1. UL 2034

2. UL 217

3. UL 498

4. UL 3000

The correct answer is: UL 217

The correct answer is that smoke alarms must conform to UL 217 according to NFPA 72. UL 217 specifies the requirements for smoke alarms, including their performance, functionality, and reliability. This standard ensures that smoke alarms effectively detect smoke and provide timely alerts to occupants in order to enhance safety in residential settings. NFPA 72 is the National Fire Alarm and Signaling Code, which outlines the installation, performance, and maintenance of fire alarm systems, including smoke alarms. By adhering to UL 217, smoke alarms can be assured of meeting the necessary safety criteria. The other standards mentioned are not applicable to smoke alarms in the same way. For example, UL 2034 pertains to carbon monoxide alarms, which are designed to detect the presence of carbon monoxide rather than smoke. UL 498 is a standard for electrical receptacles and does not cover smoke detection, while UL 3000 deals with personal emergency response systems. These standards serve different purposes and are not relevant to the specific requirements for smoke alarm conformities outlined in NFPA 72.