CFAA Fire Alarm Technician · Question
During a verification, what must happen when a firefighter handset is taken 'off-hook' at a remote station?
S537 requires testing that the handset is 'supervised'. If the handset is removed from its cradle, a signal (usually a 'call-in') must appear at the CACF.
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Question: During a verification, what must happen when a firefighter handset is taken 'off-hook' at a remote station?
Answer options: ✅ A 'call-in' or 'phone trouble' signal appears at the CACF
- The building's fire alarm immediately sounds in 2nd stage
- The elevator stops at the nearest floor automatically
- The handset starts to vibrate
Correct answer: A 'call-in' or 'phone trouble' signal appears at the CACF
Explanation: S537 requires testing that the handset is 'supervised'. If the handset is removed from its cradle, a signal (usually a 'call-in') must appear at the CACF.
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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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