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Fire Alarm Lesson 7&8 Practice Test

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When survivability is required for an emergency voice/alarm system, which circuits must meet survivability requirements?
Correct Answer:
Notification appliance circuits
Explanation:
Survivability means the system must keep delivering warnings to occupants even during power loss or other adverse conditions. The essential path for alerting people is the notification appliances—the devices that actually emit the evacuation message and warnings (horns, strobes, and integrated speakers). If these circuits don’t stay powered and functional, occupants may not hear or see the alert, defeating evacuation. That’s why the requirement targets the notification appliance circuits themselves, ensuring they have backup power and redundancy. Data circuits aren’t the means of delivering the alert, and while power supplies back up the system, the focus here is on the circuits that convey the alarm to people.

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