CFAA Fire Alarm Technician · Question
In a large open area with a smooth ceiling, what is the maximum distance from any point on the ceiling to the nearest heat detector if the detector's listed spacing is 15 meters?
For heat detectors on smooth ceilings, the maximum distance from any point on the ceiling to the nearest detector is 0.7 times the listed spacing. For 15m spaci
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Question: In a large open area with a smooth ceiling, what is the maximum distance from any point on the ceiling to the nearest heat detector if the detector's listed spacing is 15 meters?
Answer options:
- 7.5 m
- 9.0 m ✅ 10.5 m
- 15.0 m
Correct answer: 10.5 m
Explanation: For heat detectors on smooth ceilings, the maximum distance from any point on the ceiling to the nearest detector is 0.7 times the listed spacing. For 15m spacing: 15 * 0.7 = 10.5m.
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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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