CFAA Fire Alarm Technician · Question
In a corridor 3 meters wide, what is the maximum permitted distance between a smoke detector and the end wall?
CAN/ULC-S524 specifies that smoke detectors in hallways up to 5 m wide must be spaced no further than 12 m apart and within 6 m of any end wall.
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Question: In a corridor 3 meters wide, what is the maximum permitted distance between a smoke detector and the end wall?
Answer options:
- 4.5 m
- 5.0 m
- 5.5 m ✅ 6.0 m
Correct answer: 6.0 m
Explanation: CAN/ULC-S524 specifies that smoke detectors in hallways up to 5 m wide must be spaced no further than 12 m apart and within 6 m of any end wall.
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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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