Practice question

What is the correct action when the tiller operator senses the trailer approaching jackknife during a backing maneuver?

  1. Add more reverse throttle
  2. Stop immediately, then pull forward to reduce the articulation angle
  3. Apply the trailer parking brake while continuing to back
  4. Disengage the fifth wheel

Answer: B — Stop immediately, then pull forward to reduce the articulation angle

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

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