CDL Practice Question #380

When adjusting the order of trailers in a multi-trailer rig:

Place the heaviest immediately behind the tractor and progressively lighter to the rear
Place the heaviest at the rear
Order does not matter
Order is alphabetical

Correct. Heaviest first, lightest last. This minimizes rearward amplification and rollover risk in the rear trailers.

Why this question matters

This question is one of 50 in our Doubles/Triples bank. The reasoning above comes directly from the AAMVA CDL Manual, the source document used by every U.S. state DMV. Memorizing the underlying rule — not just the letter answer — is what separates passing on the first attempt from a return trip and another fee.

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