CFAA Fire Alarm Technician · Question
During the annual inspection, which of the following must be measured and recorded for standby batteries?
The charge voltage must be measured and recorded to ensure it meets the battery manufacturer's specifications (usually 27.3-27.6V for a 24V system).
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Question: During the annual inspection, which of the following must be measured and recorded for standby batteries?
Answer options: ✅ Voltage with AC on (charger output)
- Specific gravity of the plastic casing
- Distance from the FACP to the batteries
- Serial number of the AC breaker
Correct answer: Voltage with AC on (charger output)
Explanation: The charge voltage must be measured and recorded to ensure it meets the battery manufacturer's specifications (usually 27.3-27.6V for a 24V system).
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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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