ASTTBC RFPT — Fire Alarm Systems (AL) · Question
Which of the following is true regarding a 'short circuit' on a Class A addressable DCL loop?
When a short circuit occurs on an addressable Class A loop, without isolators, the whole loop will fail (Trouble). Isolators are used to limit this failure to a
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Question: Which of the following is true regarding a 'short circuit' on a Class A addressable DCL loop?
Answer options: ✅ A short circuit will potentially disable the entire loop.
- A short circuit is ignored by the panel.
- A short circuit is handled exactly the same as a break.
- A short circuit is only possible in Class B.
Correct answer: A short circuit will potentially disable the entire loop.
Explanation: When a short circuit occurs on an addressable Class A loop, without isolators, the whole loop will fail (Trouble). Isolators are used to limit this failure to a single segment. A short is more 'damaging' than a break in Class A.
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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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