CFAA Fire Alarm Technician · Question
During annual testing, what is the maximum allowable time delay for the automatic transition to second stage if not inhibited?
ULC-S536 requires the verification of the timer to ensure it triggers the second stage within the programmed time (max 5 mins).
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Question: During annual testing, what is the maximum allowable time delay for the automatic transition to second stage if not inhibited?
Answer options:
- 1 minute
- 3 minutes ✅ 5 minutes
- 10 minutes
Correct answer: 5 minutes
Explanation: ULC-S536 requires the verification of the timer to ensure it triggers the second stage within the programmed time (max 5 mins).
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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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