CFAA Fire Alarm Technician · Question
Which circuit classification requires a redundant path to ensure operation despite a single open fault?
Data Communication Link Class A (DCLA) provides a redundant path, allowing the circuit to function despite a single open.
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Question: Which circuit classification requires a redundant path to ensure operation despite a single open fault?
Answer options: ✅ DCLA (Class A)
- DCLB (Class B)
- DCLC (Class C)
- Standard non-redundant loop
Correct answer: DCLA (Class A)
Explanation: Data Communication Link Class A (DCLA) provides a redundant path, allowing the circuit to function despite a single open.
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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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