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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

Spot-type smoke detectors shall not be installed within ____ of a supply air diffuser or any other source of forced air.

CAN/ULC-S524 requires that fire alarm initiating devices (detectors) be located within specific distances of various ceiling obstructions and forced air inlets.

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Question: Spot-type smoke detectors shall not be installed within ____ of a supply air diffuser or any other source of forced air.

Answer options:

  • 0.5 m
  • 0.75 m ✅ 1.0 m
  • 1.5 m

Correct answer: 1.0 m

Explanation: CAN/ULC-S524 requires that fire alarm initiating devices (detectors) be located within specific distances of various ceiling obstructions and forced air inlets. For air inlets, the distance is 1.0 m.

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