Home › CDL Practice Tests › General Knowledge Questions › Question 291
Why must you check both sides of the vehicle, not just the side you are backing toward?
- A.The other side never moves during backing
- B.The front of the tractor swings opposite the trailer and can strike objects, vehicles, or people on the other side
- C.Checking both sides is only a training rule
- D.Swing matters only for cars
Correct answer
B. The front of the tractor swings opposite the trailer and can strike objects, vehicles, or people on the other side
Why
As the trailer angles one way, the tractor's front swings the other way, a movement easy to forget while watching the trailer. Clearance on the swing side is part of the backing path and must be checked too.
Manual topic: Backing - Swing · From the General Knowledge practice bank (GK-291).