CFAA Fire Alarm Technician · Question
What is a specific installation requirement for fiber optic communication links in a fire alarm network?
Fiber optic cables must be protected by a raceway or be 'armoured' to meet the mechanical protection requirements for fire alarm circuits. Tiny fibers are easil
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Question: What is a specific installation requirement for fiber optic communication links in a fire alarm network?
Answer options:
- Must be orange in colour
- Cannot be used for network communication ✅ Must be protected against mechanical damage (e.g. in conduit)
- Must be limited to 10 meters in length
Correct answer: Must be protected against mechanical damage (e.g. in conduit)
Explanation: Fiber optic cables must be protected by a raceway or be 'armoured' to meet the mechanical protection requirements for fire alarm circuits. Tiny fibers are easily damaged.
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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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