ASTTBC RFPT — Fire Alarm Systems (AL) · Question
Under NBCC 3.2.4.19, what is the minimum sound pressure level required for fire alarm signals in a sleeping room (measured at the pillow)?
NBCC 3.2.4.19.2 states the signal shall be at least 10 dBA above ambient, but never less than 65 dBA. Use of 500 Hz or temporal pattern is also detailed.
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Question: Under NBCC 3.2.4.19, what is the minimum sound pressure level required for fire alarm signals in a sleeping room (measured at the pillow)?
Answer options:
- 55 dBA
- 60 dBA
- 75 dBA ✅ 65 dBA
Correct answer: 65 dBA
Explanation: NBCC 3.2.4.19.2 states the signal shall be at least 10 dBA above ambient, but never less than 65 dBA. Use of 500 Hz or temporal pattern is also detailed.
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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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