CFAA Fire Alarm Technician · Question
What are the battery backup requirements for a voice communication system in a high-rise building?
Voice communication systems are often required to have 2 hours of standby power and 30 minutes of full alarm load, compared to standard systems which may only r
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Question: What are the battery backup requirements for a voice communication system in a high-rise building?
Answer options: ✅ 24 hours standby / 30 minutes full alarm voice operation
- 60 hours standby / 5 minutes alarm
- 12 hours standby / 1 hour alarm
- 8 hours standby / 10 minutes alarm
Correct answer: 24 hours standby / 30 minutes full alarm voice operation
Explanation: Voice communication systems are often required to have 2 hours of standby power and 30 minutes of full alarm load, compared to standard systems which may only require 5 or 30 minutes of alarm.
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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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