Before coupling a converter dolly to the rear of a first trailer, the dolly landing gear should be:

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ASet at the same height as the trailer frame with landing gear fully extended
BFully raised so the dolly sits at its lowest point
CAdjusted so the dolly fifth wheel is slightly lower than the trailer's rear kingpin height
DPosition does not matter as long as the pintle hook is open

✓ Correct answer: C. Adjusted so the dolly fifth wheel is slightly lower than the trailer's rear kingpin height The CDL manual specifies that the converter dolly's fifth wheel should be positioned slightly below the kingpin height of the trailer being coupled so the trailer rides up onto the fifth wheel as it is pulled into position, ensuring full engagement.

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Before coupling a converter dolly to the rear of a first trailer, the dolly landing gear should be:

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