CFAA Fire Alarm Technician · Question
What is the function of the 'All-Call' selector on a voice communication control panel?
In a multi-zone voice system, the 'all-call' feature overrides individual zones to broadcast to the entire facility.
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Question: What is the function of the 'All-Call' selector on a voice communication control panel?
Answer options:
- To call the monitoring station ✅ To broadcast a message to all speaker zones simultaneously
- To reset the building's fire pumps
- To activate the 5-minute timer manually
Correct answer: To broadcast a message to all speaker zones simultaneously
Explanation: In a multi-zone voice system, the 'all-call' feature overrides individual zones to broadcast to the entire facility.
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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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