When performingannual testingof notification appliances such as strobes or horns, NFPA 72 mandatesfunctional testing— which means checking that they operate correctly when activated.
NFPA 72 (2022), Table 14.4.3.2 — Testing Frequencies and Methods:
Under "Notification Appliances," the required method for both audible and visible devices is:
"Functional test — verify proper operation."
While things likesound levelsandcandela settingsare verified duringacceptance testing or design review, the annual requirement issimply to verify that they work.
Correct answer: C. Verify proper operation
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