CFAA Fire Alarm Technician · Question
Calculate the minimum battery capacity (Ah) including a 1.25 safety factor for a system with a 0.5A standby load and a 2.0A alarm load (30-min alarm duration).
The battery must support the system for 24 hours of standby followed by 30 minutes of alarm. 0.5A * 24h = 12Ah. 2.0A * 0.5h = 1Ah. Total = 13Ah. Applying the sa
Start free practice for CFAA Fire Alarm Technician
30 questions · no signup required · 40 free questions per day
Question: Calculate the minimum battery capacity (Ah) including a 1.25 safety factor for a system with a 0.5A standby load and a 2.0A alarm load (30-min alarm duration).
Answer options:
- 13.0 Ah ✅ 16.25 Ah
- 18.5 Ah
- 24.0 Ah
Correct answer: 16.25 Ah
Explanation: The battery must support the system for 24 hours of standby followed by 30 minutes of alarm. 0.5A * 24h = 12Ah. 2.0A * 0.5h = 1Ah. Total = 13Ah. Applying the safety factor (1.25) = 16.25Ah.
Start free practice for CFAA Fire Alarm Technician
30 questions · no signup required · 40 free questions per day
More about CFAA Fire Alarm Technician
Related Questions
- 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?
- A circuit has a total resistance of 40 Ohms and is connected to a 24VDC source. What is the total power dissip
- Which of the following is NOT a direct component of Ohm's Law?
More for CFAA Fire Alarm Technician candidates
Study guides
FAQs
- How long is the CFAA Fire Alarm Technician exam? — CFAA Fire Alarm Technician
- How many questions are on the CFAA Fire Alarm Technician exam? — CFAA Fire Alarm Technician
- What is the passing score for the CFAA Fire Alarm Technician exam? — CFAA Fire Alarm Technician
- How often do I need to recertify CFAA Fire Alarm Technician? — CFAA Fire Alarm Technician
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?
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free CFAA Fire Alarm Technician Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.