When inspecting the coupling area of a combination vehicle, what should you check the fifth wheel for?

Pick an answer

1. That it is securely mounted, properly lubricated, and the locking jaws are closed around the kingpin
2. That it makes a clicking sound while the vehicle moves, which by itself does not confirm the jaws are actually closed
3. That it is the same brand as the tractor
4. That it matches the trailer's paint color

Correct!

Not quite. The correct answer is highlighted.