CFAA Fire Alarm Technician · Question
What is a primary advantage of using fiber optic cabling for fire alarm network backbones?
Fiber optics provide electromagnetic immunity and allow for significantly longer distances between nodes compared to copper.
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Question: What is a primary advantage of using fiber optic cabling for fire alarm network backbones?
Answer options: ✅ Immunity to electromagnetic interference (EMI) and longer distances
- Lower cost per meter compared to copper
- The ability to supply power to the remote panels over the fiber
- Easier termination for field technicians without specialized tools
Correct answer: Immunity to electromagnetic interference (EMI) and longer distances
Explanation: Fiber optics provide electromagnetic immunity and allow for significantly longer distances between nodes compared to copper.
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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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