ASTTBC RFPT — Fire Alarm Systems (AL) · Question
What is the minimum required sound pressure level for a fire alarm signal above the average ambient noise level?
NBCC 3.2.4.19(2) states that the sound pressure level shall be at least 15 dBA above ambient.
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Question: What is the minimum required sound pressure level for a fire alarm signal above the average ambient noise level?
Answer options:
- 5 dBA above ambient
- 10 dBA above ambient ✅ 15 dBA above ambient
- 20 dBA above ambient
Correct answer: 15 dBA above ambient
Explanation: NBCC 3.2.4.19(2) states that the sound pressure level shall be at least 15 dBA above ambient.
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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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