CFAA Fire Alarm Technician · Question
Regarding audible signal characteristics in two-stage systems, which of the following is true?
The Alert signal (1st stage) must have a different sound than the Alarm signal (2nd stage) to avoid confusion. S524 recommends 20 pulses per minute for alert an
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Question: Regarding audible signal characteristics in two-stage systems, which of the following is true?
Answer options: ✅ The alert signal and alarm signal must be distinct from each other
- The signals must be identical but at different decibel levels
- Visual signals only for 1st stage, audible for 2nd stage
- Alert signals must only sound in the mechanical rooms
Correct answer: The alert signal and alarm signal must be distinct from each other
Explanation: The Alert signal (1st stage) must have a different sound than the Alarm signal (2nd stage) to avoid confusion. S524 recommends 20 pulses per minute for alert and 120 pulses or continuous for 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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