CFAA Fire Alarm Technician · Question
Under CAN/ULC-S524, if an annunciator has control switches for 'Signal Silence', what is the security requirement?
Under S524, any annunciator that contains a 'Signal Silence' or 'System Reset' switch must be secured (e.g., behind a locked glass door or require a keyswitch/c
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Question: Under CAN/ULC-S524, if an annunciator has control switches for 'Signal Silence', what is the security requirement?
Answer options:
- The switches must be red.
- The switches must be at least 2 metres high. ✅ The switches must be behind a secure cover or require a key.
- The switches must be disabled during the day.
Correct answer: The switches must be behind a secure cover or require a key.
Explanation: Under S524, any annunciator that contains a 'Signal Silence' or 'System Reset' switch must be secured (e.g., behind a locked glass door or require a keyswitch/code) to prevent unauthorized use.
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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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