CFAA Fire Alarm Technician · Question
What are the typical duration requirements for battery standby and alarm for a building using a voice communication system?
The building code specifies 24 hours of standby followed by 30 minutes of full alarm for most buildings. (5 mins for some, but 30 is the standard for high-rise/
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Question: What are the typical duration requirements for battery standby and alarm for a building using a voice communication system?
Answer options:
- 12 hours standby / 5 minutes alarm
- 24 hours standby / 15 minutes alarm ✅ 24 hours standby / 30 minutes alarm
- 48 hours standby / 60 minutes alarm
Correct answer: 24 hours standby / 30 minutes alarm
Explanation: The building code specifies 24 hours of standby followed by 30 minutes of full alarm for most buildings. (5 mins for some, but 30 is the standard for high-rise/voice).
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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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