ASTTBC RFPT — Fire Alarm Systems (AL) · Question
In a conventional Class B initiating device circuit, an open-circuit fault must result in:
Field wiring must be monitored for opens, grounds, and short circuits depending on the class (A vs B). An open circuit must result in a trouble signal.
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Question: In a conventional Class B initiating device circuit, an open-circuit fault must result in:
Answer options:
- Activation of the fire pumps
- An alarm signal in the affected zone
- The immediate release of all door magnets ✅ A trouble signal at the control unit
Correct answer: A trouble signal at the control unit
Explanation: Field wiring must be monitored for opens, grounds, and short circuits depending on the class (A vs B). An open circuit must result in a trouble signal.
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Question explanations
- Which of the following constitutes a system 'deficiency' rather than a 'non-conformance' to current standards?
- When a deficiency is corrected, what specific information MUST be recorded in the log?
- Which of the following would be categorized as a 'Non-Conformance' to the Installation Standard (S524) in an i
- In the event of a deficiency that renders the fire alarm system inoperative, what is the mandatory reporting r
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