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ASTTBC RFPT — Fire Alarm Systems (AL) · Question

A smoke detector must be located no closer than ________ from an air supply opening.

CAN/ULC-S524 requires detectors to be installed at least 1 meter from any air supply inlet to prevent 'skipping' or dilution of smoke.

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Question: A smoke detector must be located no closer than ________ from an air supply opening.

Answer options: ✅ 1000 mm

  • 300 mm
  • 500 mm
  • 2000 mm

Correct answer: 1000 mm

Explanation: CAN/ULC-S524 requires detectors to be installed at least 1 meter from any air supply inlet to prevent 'skipping' or dilution of smoke.

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