CFAA Fire Alarm Technician · Question
During verification of a two-stage manual station, what must occur when the second-stage key is operated?
S537 testing requires that when the second-stage key is inserted and turned, the alarm signal must bypass the timer and sound immediately.
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Question: During verification of a two-stage manual station, what must occur when the second-stage key is operated?
Answer options:
- Wait for the 5-minute timer to expire before sounding the alarm signal
- Transmit a supervisory signal to the central station ✅ Immediately initiate the evacuation (alarm) signal throughout the building
- Only allow the signal to sound at the fire command center
Correct answer: Immediately initiate the evacuation (alarm) signal throughout the building
Explanation: S537 testing requires that when the second-stage key is inserted and turned, the alarm signal must bypass the timer and sound immediately.
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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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