CFAA Fire Alarm Technician · Question
A visible signal device is being wall-mounted in a corridor. What is the required installation height to the center of the lens?
Clause 5.10.1.2 requires visible signal devices (strobes) to be mounted between 2000 mm and 2400 mm above the finished floor, or not less than 150 mm below the
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Question: A visible signal device is being wall-mounted in a corridor. What is the required installation height to the center of the lens?
Answer options:
- 1800 mm
- 1900 mm ✅ 2100 mm
- 2500 mm
Correct answer: 2100 mm
Explanation: Clause 5.10.1.2 requires visible signal devices (strobes) to be mounted between 2000 mm and 2400 mm above the finished floor, or not less than 150 mm below the ceiling. 2100mm fits this range.
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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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