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Difficulty: MediumBalance and Center of Gravity

Placing dense, heavy freight on top of lighter cargo inside a commercial trailer helps lower the vehicle's overall center of gravity by compressing the bottom layer, thereby improving cornering stability.

Answer: Answer

Answer

False
The statement is false because placing dense, heavy freight on top of lighter cargo elevates the vehicle's center of gravity. A high center of gravity creates top-heaviness, which substantially increases the risk of a rollover when cornering or making abrupt steering corrections. Heavy cargo must always be loaded directly on the trailer floor with lighter items placed on top.

Step-by-Step Solution

1
Analyze how vertical cargo placement affects center of gravity height
Positioning heavy freight near the top of the trailer elevates the combined vehicle-cargo center of gravity rather than lowering it.
The center of gravity is determined by the vertical distribution of mass; locating heavy items high raises the center of mass regardless of any compression on lower items.
2
Evaluate the vehicle handling and rollover consequences of an elevated center of gravity
A high center of gravity degrades lateral stability and dramatically increases the likelihood of a rollover during turns and evasive steering.
Standard CDL cargo securement and balance principles mandate loading the heaviest freight on the trailer floor to keep the center of gravity as low as possible.

Key Concept

Vertical cargo weight distribution and center of gravity management
Estimated Time:45s
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Topics

Balance and Center of Gravity

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