BC Class 1 Practice Test · Question
Scenario 229: A 'jackknife' occurs when:
Drive-wheel lock-up or skid causes the trailer to swing around and form an angle with the tractor. The correct answer is "The tractor and trailer fold at the fi
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Question: Scenario 229: A 'jackknife' occurs when:
Answer options: ✅ The tractor and trailer fold at the fifth wheel due to drive-wheel skid
- Tires lose air pressure suddenly
- The trailer load shifts forward
- The kingpin breaks
Correct answer: The tractor and trailer fold at the fifth wheel due to drive-wheel skid
Explanation: Drive-wheel lock-up or skid causes the trailer to swing around and form an angle with the tractor. The correct answer is "The tractor and trailer fold at the fifth wheel due to drive-wheel skid". This capacity-fill scenario 229 reinforces the same competency for the class1 bank and follows the certified explanation standard.
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