How well do you understand the latest NFPA 72 requirements for fire alarm pathway class designations? Take this quiz to test your knowledge.
Created by: Thomas P. Hammerberg
1. There are now _____ classes for fire alarm pathways.
2. Which class is the most similar to the old Style 7 for signaling line circuits?
3. Which pathway segregates all life safety data from non–life safety data?
A. Shared pathway Level 0
B. Shared pathway Level 1
C. Shared pathway Level 2
D. Shared pathway Level 3
4. _____ circuits using physical conductors (e.g., metallic or optical fiber) shall be installed so that the primary and redundant, or outgoing and return, conductors exiting from and returning to the control unit, respectively, are routed separately.
A. Class A, Class B and Class C
B. Class A, Class D and Class E
C. Class A, Class N and Class X
D. Class A, Class B and Class X
5. Pathway survivability Level _____ shall consist of pathways in buildings that are fully protected by an automatic sprinkler system in accordance with NFPA 13, with any interconnecting conductors, cables or other physical pathways protected by metal raceways or metal armored cables.
6. A pathway shall be designated as Class _____ when it is not monitored for integrity.
7. Class _____ pathways require that operational capability on metallic conductors continues past a single short-circuit, and the single short-circuit fault results in the annunciation of a trouble signal.
8. Monitoring for integrity shall not be required for a trouble notification appliance circuit.
9. Where two or more systems are interconnected, the systems shall be connected using Class A, B, _____ or X circuits as described in Section 12.3.
10. Chapter 12 provides requirements for when each class is to be used.