CFAA Fire Alarm Technician · Question
What is a specific requirement when verifying an air-aspirating smoke detection system?
CAN/ULC-S537-19 Section 5.11 requires that specialized sensors such as flame or air-aspirated detectors be tested using manufacturer-recommended methods and tha
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Question: What is a specific requirement when verifying an air-aspirating smoke detection system?
Answer options: ✅ Confirming transport time from the furthest hole meets design specs
- Blowing cigarette smoke into the nearest sampling hole
- Measuring the air flow in CFM at the exhaust port
- Checking the color of the PVC sampling pipe
Correct answer: Confirming transport time from the furthest hole meets design specs
Explanation: CAN/ULC-S537-19 Section 5.11 requires that specialized sensors such as flame or air-aspirated detectors be tested using manufacturer-recommended methods and that the transport time (for air-sampling) be verified against design specs.
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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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