ASTTBC RFPT — Fire Alarm Systems (AL) · Question
What is the primary purpose of an End-of-Line (EOL) resistor in a Class B circuit?
In a Class B circuit, the panel monitors the 'supervisory current' flowing through the EOL resistor. If the wire breaks, current stops, and a trouble signal is
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Question: What is the primary purpose of an End-of-Line (EOL) resistor in a Class B circuit?
Answer options:
- To provide extra power to the detectors.
- To prevent lightning strikes.
- To terminate the Class A loop. ✅ To monitor the circuit for electrical continuity (breaks).
Correct answer: To monitor the circuit for electrical continuity (breaks).
Explanation: In a Class B circuit, the panel monitors the 'supervisory current' flowing through the EOL resistor. If the wire breaks, current stops, and a trouble signal is generated.
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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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