CFAA Fire Alarm Technician · Question
When an alarm occurs, what is the standard requirement for a building's recirculating air-handling system?
S537 Table 3 requires verifying that the fire alarm system correctly shuts down the fans upon alarm. Failure to stop fans could spread smoke.
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Question: When an alarm occurs, what is the standard requirement for a building's recirculating air-handling system?
Answer options:
- Increase speed to clear smoke ✅ Shutdown to prevent smoke spread
- Shift into reverse mode
- Wait for 10 minutes before stopping
Correct answer: Shutdown to prevent smoke spread
Explanation: S537 Table 3 requires verifying that the fire alarm system correctly shuts down the fans upon alarm. Failure to stop fans could spread smoke.
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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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