Animpairmentoccurs when part of the life safety system isdisabled or rendered ineffective. Aclosed sprinkler valvedirectly disables part of the fire suppression system, which meets the definition of an impairment.
NFPA 72 (2022), Section 3.3.149 — Impairment:
“A condition where a fire protection or life safety system or portion thereof is out of service.”
Smoke detector placement issues may be acode violationbut not a systemimpairment.Intelligible audibilityis a positive attribute, not a problem.
Correct answer: A. Closed sprinkler valve
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