CFAA Fire Alarm Technician · Question
If a fire alarm system includes an emergency voice communication system, what is the required alarm duration after 24 hours of standby?
NBCC 3.2.4.7.(5) specifies 30 minutes of alarm for systems required to have emergency voice communication.
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Question: If a fire alarm system includes an emergency voice communication system, what is the required alarm duration after 24 hours of standby?
Answer options:
- 5 minutes ✅ 30 minutes
- 60 minutes
- 15 minutes
Correct answer: 30 minutes
Explanation: NBCC 3.2.4.7.(5) specifies 30 minutes of alarm for systems required to have emergency voice communication.
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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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