CFAA Fire Alarm Technician · Question
When testing the supervision of a conventional initiating circuit, what is the expected result when an 'open' is introduced?
Circuit supervision must be tested by introducing an open circuit to see if the control unit reports a trouble signal.
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Question: When testing the supervision of a conventional initiating circuit, what is the expected result when an 'open' is introduced?
Answer options: ✅ A trouble signal is generated at the control unit.
- The fire alarm system goes into full alarm.
- The circuit fuse immediately blows.
- The device LED turns solid green.
Correct answer: A trouble signal is generated at the control unit.
Explanation: Circuit supervision must be tested by introducing an open circuit to see if the control unit reports a trouble signal.
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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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