Which checks belong in the inspection of a sliding fifth wheel’s locking pins?
Correct answer: D – All of these answers are correct
The Vermont inspection procedure includes all three checks. The sliding mechanism must have no loose or missing pins, and an air-operated unit must not leak. The pins must be fully engaged, and the fifth wheel must be positioned to provide landing-gear clearance during turns.
Source: Vermont Commercial Driver’s License Manual — § 11.2.7, “Tractor/Coupling—Locking Pins (Fifth Wheel)”

