Ontario Class A Practice Test · Question
Scenario 231: A 'trailer swing' (trailer skid) is best corrected by:
Using the hand valve makes a trailer skid worse; releasing brakes lets the trailer regain traction. The correct answer is "Releasing the brakes to let the trail
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Question: Scenario 231: A 'trailer swing' (trailer skid) is best corrected by:
Answer options:
- Applying the trailer hand valve hard ✅ Releasing the brakes to let the trailer realign
- Increasing speed
- Locking the differential
Correct answer: Releasing the brakes to let the trailer realign
Explanation: Using the hand valve makes a trailer skid worse; releasing brakes lets the trailer regain traction. The correct answer is "Releasing the brakes to let the trailer realign". This capacity-fill scenario 231 reinforces the same competency for the class1 bank and follows the certified explanation standard.
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