CFAA Fire Alarm Technician · Question
When the 'Signal Silence' function is activated at the control unit, what must be observed?
Clause 5.11.1 requires verifying that the signal silencing switch operates as intended and that visual indicators show the system is silenced.
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Question: When the 'Signal Silence' function is activated at the control unit, what must be observed?
Answer options: ✅ The 'Signal Silenced' visual indicator must illuminate.
- The 'Trouble' light must turn off.
- The batteries must automatically disconnect.
- The remote annunciator must power down.
Correct answer: The 'Signal Silenced' visual indicator must illuminate.
Explanation: Clause 5.11.1 requires verifying that the signal silencing switch operates as intended and that visual indicators show the system is silenced.
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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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