CFAA Fire Alarm Technician · Question
What is the minimum sound pressure level required in a sleeping room with the door closed?
NBCC 3.2.4.19. (4) requires a minimum of 75 dBA in a sleeping room when the door is closed.
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Question: What is the minimum sound pressure level required in a sleeping room with the door closed?
Answer options:
- 65 dBA ✅ 75 dBA
- 85 dBA
- 95 dBA
Correct answer: 75 dBA
Explanation: NBCC 3.2.4.19. (4) requires a minimum of 75 dBA in a sleeping room when the door is closed.
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Question explanations
- The primary power for a fire alarm system must be:
- If a 120VAC primary power circuit for a fire alarm control unit is consuming 60 Watts of power, what is the cu
- In a steady-state DC circuit, if the conductor length is doubled while maintaining voltage and wire gauge, wha
- A resistor is rated at 10 Watts at 24VDC. If the voltage drops to 20VDC, what is the new power dissipation?
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