CFAA Fire Alarm Technician · Question
Which of the following is an acceptable method for sensitivity testing an 'intelligent' smoke detector?
For addressable systems, checking sensitivity via the Fire Alarm Control Unit (FACU) display is an acceptable method under S536.
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Question: Which of the following is an acceptable method for sensitivity testing an 'intelligent' smoke detector?
Answer options:
- Using canned smoke at a distance of 1 metre ✅ Reading the sensitivity values from the Fire Alarm Control Unit (FACU) display
- Using a voltmeter on the detector base
- Observing the LED flash rate on the detector
Correct answer: Reading the sensitivity values from the Fire Alarm Control Unit (FACU) display
Explanation: For addressable systems, checking sensitivity via the Fire Alarm Control Unit (FACU) display is an acceptable method under S536.
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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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