ASTTBC RFPT — Fire Alarm Systems (AL) · Question
Which method is correct for testing a projected beam-type smoke detector?
Linear beam detectors require a specific filter (obscuration) to simulate smoke over the beam path to confirm the alarm threshold.
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Question: Which method is correct for testing a projected beam-type smoke detector?
Answer options:
- Using a laser pointer to strike the receiver
- Walking in front of the beam path quickly ✅ Applying an obscuration filter as per manufacturer's instructions
- Blowing canned smoke at the lens of the transmitter
Correct answer: Applying an obscuration filter as per manufacturer's instructions
Explanation: Linear beam detectors require a specific filter (obscuration) to simulate smoke over the beam path to confirm the alarm threshold.
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Question explanations
- Which of the following constitutes a system 'deficiency' rather than a 'non-conformance' to current standards?
- When a deficiency is corrected, what specific information MUST be recorded in the log?
- Which of the following would be categorized as a 'Non-Conformance' to the Installation Standard (S524) in an i
- In the event of a deficiency that renders the fire alarm system inoperative, what is the mandatory reporting r
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