Practice question

What does the term 'high coupling' refer to?

  1. A trailer with a tall load
  2. The kingpin sitting on top of closed fifth wheel jaws - not actually locked
  3. A fifth wheel mounted high on the frame
  4. A speed exceeding 65 mph

Answer: B — The kingpin sitting on top of closed fifth wheel jaws - not actually locked

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

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