How does the total length of a doubles combination typically compare to a single 53-foot trailer combination?
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Correct answer to question 45 (Doubles/Triples): It is typically longer overall, even though each individual trailer is shorter than a single long trailer
Why
Even though each pup trailer is shorter than a full-length single trailer, adding a second one plus a dolly usually makes the whole combination longer overall, which is part of why extra following and stopping distance matter.
Updated: November 2026
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