Practice question

What must be verified on a sliding fifth wheel?

Slide is unlocked for turns
It is dry and free of grease
It is mounted only to the trailer
All locking pins are present and locked

Answer: D — All locking pins are present and locked

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

Practice more: Missouri CDL Combination Practice Questions - Missouri CDL Combination Vehicles Test Exam →