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.
Created by: Thomas P. Hammerberg
1. CO gas is approximately the same weight as air.
2. The standard currently used for CO alarm and detector installation is NFPA _____.
3. The audible CO alarm signal is a _____ temporal pattern signal.
A. one-pulse (on-off)
4. CO detection requirements are in the International Fire Code (IFC), Section _____.
5. If an individual is exposed to CO levels of 400 parts per million, the symptoms typically experienced will be _____.
A. No adverse affects after 8 hours of exposure
B. Mild headache after 2 hours of exposure
C. Headache and nausea after 1–2 hours of exposure
D. Loss of consciousness after 1 hour of exposure
6. CO alarms are listed to UL _____.
7. In a Group E occupancy that uses fuel-burning appliances, CO alarms are required to be installed in classrooms only.
8. Per the IFC, CO detection is required to be installed in all occupancies that use fuel-burning appliances.
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 _____.
A. 5 minutes
B. 60 minutes
C. 4 hours
D. 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.