CFAA Fire Alarm Technician · Question
According to ULC-S524, an automatic voice recording must be preceded by what?
Automatic evacuation messages must be preceded by an alert or alarm tone to capture attention.
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Question: According to ULC-S524, an automatic voice recording must be preceded by what?
Answer options:
- 10 seconds
- 5 seconds ✅ 2 to 3 cycles of the T3 or alert tone
- 30 seconds of silence to allow for exit
Correct answer: 2 to 3 cycles of the T3 or alert tone
Explanation: Automatic evacuation messages must be preceded by an alert or alarm tone to capture attention.
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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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