Practice question

When the wheels of a trailer lock up:

  1. The trailer will stay straight.
  2. The trailer tends to swing around.
  3. The cab will swing, but the trailer will stay straight.
  4. They will likely go flat.

Answer: B — The trailer tends to swing around.

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

Practice more: District Of Columbia CDL Combination Test 1 →