What is the correct way to approach a trailer when starting to couple?

• A.Back in at an angle so the fifth wheel slides into place
• B.Approach quickly so momentum seats the kingpin
• C.Line the tractor up straight in front of the trailer and back slowly under it
• D.Back with the fifth wheel raised to its highest position

Why

Coming in straight keeps the kingpin centered in the fifth wheel throat. Backing slowly prevents a hard impact that can damage the kingpin, apron, or locking jaws.

Manual topic: Combination Vehicles - Coupling · From the Combination Vehicles practice bank (CV-002).

Practice this subject as a full test

More Fifth Wheel & Coupling Steps questions

• Before backing under a trailer, what should you first check about the trailer's height?
• Just before the fifth wheel contacts the trailer apron, what should you do?
• Why should you back very slowly for the last part of coupling?
• When you first back under and hear the fifth wheel lock, what is the next safety check?
• What does a tug test check after coupling?