Practice question

When coupling the dolly to the rear trailer, where should trailer height be?

  1. Slightly lower than the center of the dolly fifth wheel
  2. Much higher than the fifth wheel
  3. So low the kingpin hits ground
  4. Height is irrelevant

Answer: A — Slightly lower than the center of the dolly fifth wheel

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

Practice more: California CDL Doubles and Triples Endorsement Test Practice Questions - California CDL Doubles and Triples Endorsement Test Exam →