Class 1 Commercial Driver Practice · Question
When driving a tractor-trailer combination, where should approximately 10-15% of the gross vehicle weight be distributed?
For optimal handling and stability, 10-15% of the gross vehicle weight should be carried on the kingpin, transferring that specific weight to the fifth wheel. T
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Question: When driving a tractor-trailer combination, where should approximately 10-15% of the gross vehicle weight be distributed?
Answer options:
- On the steer axle of the tractor
- On the drive axles of the tractor
- On the trailer axles ✅ On the kingpin for load transfer to the fifth wheel
Correct answer: On the kingpin for load transfer to the fifth wheel
Explanation: For optimal handling and stability, 10-15% of the gross vehicle weight should be carried on the kingpin, transferring that specific weight to the fifth wheel. This ensures proper steering and traction, as outlined in combination-vehicle handling guides.
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Question explanations
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