Practice question

If your tractor-trailer starts to jackknife on an icy road, what is the best initial response?

Slam on the service brakes to stop the vehicle immediately
Release the brakes, look and steer in the direction you want the tractor to go, and avoid abrupt accelerating or braking
Apply the trailer hand valve to straighten the trailer
Accelerate hard to pull the trailer straight

Answer: B — Release the brakes, look and steer in the direction you want the tractor to go, and avoid abrupt accelerating or braking

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