Practice question

After coupling, the tug test holds but daylight is visible between fifth wheel and apron. What should you do?

  1. Do not drive; correct the high-coupling condition and recouple
  2. Drive slowly to let it settle
  3. Raise landing gear and continue
  4. Use hand valve to pull kingpin down

Answer: A — Do not drive; correct the high-coupling condition and recouple

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

Practice more: LA CDL Combination Practice Questions - Louisiana CDL Combination Vehicles Test Exam →