CFAA Fire Alarm Technician · Question
On a peaked ceiling, within what horizontal distance of the peak must the first row of smoke detectors be located?
CAN/ULC-S524:2019 Clause 5.7.5.1 states that for peaked ceilings, a row of detectors shall be located at or within 900 mm of the peak.
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Question: On a peaked ceiling, within what horizontal distance of the peak must the first row of smoke detectors be located?
Answer options:
- 300 mm
- 500 mm
- 750 mm ✅ 900 mm
Correct answer: 900 mm
Explanation: CAN/ULC-S524:2019 Clause 5.7.5.1 states that for peaked ceilings, a row of detectors shall be located at or within 900 mm of the peak.
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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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