BC Air Brake Practice · Question
Upon starting a commercial vehicle, how should the ABS indicator lamp behave for the tractor?
When the ignition is turned on, the tractor's ABS indicator lamp should light up for a few seconds as part of a self-test and then go out, indicating the system
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Question: Upon starting a commercial vehicle, how should the ABS indicator lamp behave for the tractor?
Answer options: ✅ It should illuminate briefly and then extinguish.
- It should remain illuminated continuously.
- It should flash repeatedly.
- It should never illuminate.
Correct answer: It should illuminate briefly and then extinguish.
Explanation: When the ignition is turned on, the tractor's ABS indicator lamp should light up for a few seconds as part of a self-test and then go out, indicating the system is functional, as described in Canadian air brake manuals.
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