Communication Systems for Emergencies
How well do you know the requirements for emergency communications systems based on the 2025 NFPA 72? Take this quiz and test your knowledge.
1. Where listed loudspeakers do not achieve the code’s intelligibility requirements for a notification zone, nonlisted loudspeakers shall be permitted to be installed to achieve the intelligibility for that notification zone.
Correct Answer: True
2. Emergency communications used for mass notification are categorized into layers. A Layer 2 relates to means of notification of _____.
Correct Answer: Occupants on the exterior of a building
3. For systems employing relocation or partial evacuation in buildings with a fire resistance rating of at least 1 hour but less than 2 hours, the installation shall apply a pathway survivability of Level _____.
Correct Answer: 4
4. Two-way in-building wired emergency services communications systems (i.e., firefighter telephone systems) installed where the building has 2-hour fire-rated construction or greater shall have a pathway survivability of Level _____.
Correct Answer: 2 or 3
5. Circuits intended to transmit off-premises shall have a pathway survivability of Level _____.
Correct Answer: Any of the above
6. Occupant evacuation elevator lobby two-way wired emergency communications systems installation of communication and control circuit pathways shall have a pathway survivability of Level _____.
Correct Answer: 3
7. When the monitoring location is constantly attended by trained operators, and operator acknowledgment of receipt of a fire alarm or other emergency signal is received within _____ seconds, automatic response shall not be required.
Correct Answer: 30
8. Priority of MNS over fire alarm evacuation is permitted when evaluated by the stakeholders through a risk analysis.
Correct Answer: True
9. Where the system is used to transmit relocation instructions or other fire emergency nonevacuation messages, a _____ alert tone followed by a message (or messages where multichannel capability is used) shall be provided.
Correct Answer: 1 second to 3 seconds
10. Local operating console controls, including switches, microphone, latches, etc., shall be located above the finished floor a minimum of _____ inches and a maximum of _____ inches where the horizontal reach is less than 10 inches.
Correct Answer: 36, 48
Score: