CFAA Fire Alarm Technician · Question
When verifying interconnected fire alarm systems, the most important test is that:
CAN/ULC-S537-19 Clause 5.13 requires that for interconnected fire alarm systems, an alarm in one system must properly initiate the required sequence in the inte
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Question: When verifying interconnected fire alarm systems, the most important test is that:
Answer options: ✅ An alarm in one system initiates the programmed response in the other
- The two systems must share the same backup battery bank
- The systems must be made by the same manufacturer
- Both systems must be reset using a single master key
Correct answer: An alarm in one system initiates the programmed response in the other
Explanation: CAN/ULC-S537-19 Clause 5.13 requires that for interconnected fire alarm systems, an alarm in one system must properly initiate the required sequence in the interconnected system.
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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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