1.Walk me through how you couple to a trailer.
Why they ask
Coupling is the skill that separates a Class A driver from everyone else, and a dropped trailer is expensive and dangerous. They want to hear a set routine, not a rough idea.
How to answer
- Check the trailer height against the fifth wheel and chock the trailer wheels before you back under
- Back slowly until the kingpin locks, then do a tug test in low gear against the trailer brakes
- Get out and look under the trailer to confirm the jaws closed around the kingpin and there's no gap
- Connect the glad hands and electrical line, raise the landing gear fully and stow the handle
- Check the trailer lights and air before you pull out

