Question 3 of 20
Score: 0/0When visually inspecting the coupling of a converter dolly to the rear trailer, how much space should be between the upper and lower fifth wheel?
ExplanationThere should be no space between the upper and lower fifth wheel to ensure a secure and safe connection between the dolly and trailer.
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Did you know? The back trailer of a set whips hardest — avoid sudden lane changes.
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