Home › CDL Practice Tests › Combination Vehicles Questions › Question 28
Before backing under, what area should you make sure is clear?
- A.Only the area inside the cab
- B.The area under and around the trailer, with no people standing where the tractor or trailer will move
- C.Only the area behind the tractor tires
- D.Clearance checks are not needed in a yard
Correct answer
B. The area under and around the trailer, with no people standing where the tractor or trailer will move
Why
People near a trailer being coupled can be pinned if the trailer shifts. A quick check that the work area is clear protects anyone who might be out of your mirror view.
Manual topic: Combination Vehicles - Coupling · From the Combination Vehicles practice bank (CV-028).