Carbon Monoxide Detection

Many new requirements have been added in the codes and standards for carbon monoxide (CO) detection in the last few years. Test your knowledge of CO gas and detection requirements.

1. CO gas is approximately the same weight as air.

Correct Answer: True

2. The standard currently used for CO alarm and detector installation is NFPA _____.

Correct Answer: 720

3. The audible CO alarm signal is a _____ temporal pattern signal.

Correct Answer: four-pulse

4. CO detection requirements are in the International Fire Code (IFC), Section _____.

Correct Answer: 915

5. If an individual is exposed to CO levels of 400 parts per million, the symptoms typically experienced will be _____.

Correct Answer: Headache and nausea after 1–2 hours of exposure

6. CO alarms are listed to UL _____.

Correct Answer: 2034

7. In a Group E occupancy that uses fuel-burning appliances, CO alarms are required to be installed in classrooms only.

Correct Answer: True

8. Per the IFC, CO detection is required to be installed in all occupancies that use fuel-burning appliances.

Correct Answer: False

9. The secondary power supply for an unmonitored protected premises CO detection system is 24 hours of nonalarm operation, and, at the end of that period, be able to operate the system and all notification appliances for _____.

Correct Answer: 12 hours

10. Servicing of a system in alarm that cannot be reset shall be in accordance with Chapter 8 and shall occur within _____ hour(s) of the CO alarm signal.

Correct Answer: 4