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How does a high center of gravity in the rear trailer of a set affect safety?
- A.A high load in the rear trailer steadies the whole set
- B.Center of gravity only matters in the front trailer
- C.High loads roll less because the weight presses the tires down
- D.It raises that trailer's rollover risk, and the rear trailer is already the most likely to roll because of crack-the-whip amplification
Correct answer
D. It raises that trailer's rollover risk, and the rear trailer is already the most likely to roll because of crack-the-whip amplification
Why
The trailer with the most swing is the worst place for top-heavy cargo. Loading heavy items low, and respecting the rear unit's limits, addresses the set's weakest point.
Manual topic: Combination Vehicles - Weight and Balance · From the Combination Vehicles practice bank (CV-217).