CFAA Fire Alarm Technician · Question
In a two-stage fire alarm system, what must be verified if the first-stage alarm is not acknowledged within the 'expired time'?
In a two-stage system, the second stage (General Alarm) must be verified to trigger automatically if the first stage is not acknowledged within the programmed t
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Question: In a two-stage fire alarm system, what must be verified if the first-stage alarm is not acknowledged within the 'expired time'?
Answer options:
- The system must shut down immediately.
- A trouble signal is sent to the central station. ✅ The system must automatically initiate the second stage (General Alarm).
- The smoke detectors must reset automatically.
Correct answer: The system must automatically initiate the second stage (General Alarm).
Explanation: In a two-stage system, the second stage (General Alarm) must be verified to trigger automatically if the first stage is not acknowledged within the programmed time.
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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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