Signal priorities determine the order in which events are processed and displayed by the fire alarm system.
NFPA 72 (2022), Annex A.10.14.3 and system programming guidelines:
While not directly listed in a table, systems are programmed such that:
Alarm (including pre-alarm)has the highest priority
Followed bysupervisory, thentrouble, and finallyrestoral
Pre-alarm is part ofalarm initiation logicand is treated as high-priority due to its potential escalation.
Correct answer: A. Pre-alarm
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