CFAA Fire Alarm Technician · Question
Which ancillary function requires supervised wiring if it is critical for smoke control?
Many AHJs interpret S524/NBCC to mean that if an ancillary device is 'essential' for life safety (like a smoke damper), the circuit must be supervised for opens
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Question: Which ancillary function requires supervised wiring if it is critical for smoke control?
Answer options:
- Door holders ✅ Smoke dampers (when part of a smoke control system)
- Elevator recall (if in the same room)
- Air conditioning unit in a small office
Correct answer: Smoke dampers (when part of a smoke control system)
Explanation: Many AHJs interpret S524/NBCC to mean that if an ancillary device is 'essential' for life safety (like a smoke damper), the circuit must be supervised for opens and grounds.
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Question explanations
- The primary power for a fire alarm system must be:
- If a 120VAC primary power circuit for a fire alarm control unit is consuming 60 Watts of power, what is the cu
- In a steady-state DC circuit, if the conductor length is doubled while maintaining voltage and wire gauge, wha
- A resistor is rated at 10 Watts at 24VDC. If the voltage drops to 20VDC, what is the new power dissipation?
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