Why are loaded liquid tank vehicles especially prone to rolling over compared to many other types of cargo?
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Correct!
Correct. Liquid cargo sits high off the road inside the tank, carrying much of the load's weight high up. This high center of gravity makes the vehicle top-heavy and easy to roll over, more so than many other cargo types.
AAMVA CDL Manual
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Not quite.
Wrong. Weight alone is not what causes the rollover risk; it is where that weight sits (high off the road) that makes tank vehicles top-heavy, not a weight-per-pound comparison to dry freight.
The correct answer is A: Liquid cargo gives the vehicle a high center of gravity, making it top-heavy.
AAMVA CDL Manual
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Not quite.
Wrong. Axle width is not the factor the CDL manual identifies for tank vehicle rollover risk; the issue is the height of the liquid cargo's center of gravity.
The correct answer is A: Liquid cargo gives the vehicle a high center of gravity, making it top-heavy.
AAMVA CDL Manual
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Not quite.
Wrong. The rollover risk comes from the height of the load, not a front-to-rear weight shift. Front/rear weight distribution is a separate concern addressed by bulkhead loading practices, not this high-center-of-gravity rollover issue.
The correct answer is A: Liquid cargo gives the vehicle a high center of gravity, making it top-heavy.