Practice question

In an Arizona CDL Combination Vehicles scenario, what should the driver do for fifth wheel and kingpin?

Assume grease alone holds the trailer
Use the trailer hand valve as the main solution
Skip the outside inspection
Inspect the kingpin, fifth wheel plate, locking jaws, release handle, and mounting before operating.

Answer: D — Inspect the kingpin, fifth wheel plate, locking jaws, release handle, and mounting before operating.

The correct answer is shown above. Try the full quiz for additional practice.