CDL Vehicle Combination Practice Test

Question: 1 / 400

Why is it important to avoid sudden maneuvers while driving a combination vehicle?

They can lead to engine failure

They can destabilize the trailer and cause a loss of control

Avoiding sudden maneuvers while driving a combination vehicle is crucial because such actions can destabilize the trailer, significantly increasing the risk of losing control. When a driver makes abrupt changes in direction or speed, especially in a vehicle as complex as a combination vehicle, there is a high chance that the trailer can start to sway or fishtail. This can lead to a dangerous situation, where the trailer may flip or become unhitched from the tractor, causing accidents.

Combination vehicles are particularly sensitive to sudden movements due to their longer length and the physics involved in towing. The trailer follows a different path than the cab, and unexpected maneuvers can lead to misalignment between the two, making it difficult to regain control.

Maintaining smooth, gradual movements allows for better handling and stability of both the tractor and the trailer, ensuring safe operation on the road.

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They are against traffic laws

They waste fuel

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