CFAA Fire Alarm Technician · Question
How is the capacity of a sealed lead-acid battery verified during an annual inspection?
Clause 5.6.2.2.1 states battery capacity must be confirmed. Using a discharge tester to confirm the Ah rating matches the design is the standard method.
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Question: How is the capacity of a sealed lead-acid battery verified during an annual inspection?
Answer options:
- By checking the date of manufacture only ✅ By performing a 30-minute discharge test or internal resistance test compared to baseline
- By measuring the AC ripple of the charger
- By checking the fuse rating on the battery circuit
Correct answer: By performing a 30-minute discharge test or internal resistance test compared to baseline
Explanation: Clause 5.6.2.2.1 states battery capacity must be confirmed. Using a discharge tester to confirm the Ah rating matches the design is the standard method.
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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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