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What is the best general advice about backing with doubles or triples?
- A.Doubles back just as easily as a single trailer with practice
- B.Avoid backing a set whenever possible; plan to pull through, and if trailers must be moved backward, it is usually done one unit at a time
- C.Backing a triple is the preferred way to dock it
- D.A spotter makes backing a full set completely safe
Correct answer
B. Avoid backing a set whenever possible; plan to pull through, and if trailers must be moved backward, it is usually done one unit at a time
Why
Each articulation point reverses against the driver, making a coupled set nearly impossible to back any distance. Professional practice is to position for pull-through parking and break the set down when backing is unavoidable.
Manual topic: Combination Vehicles - Doubles and Triples · From the Combination Vehicles practice bank (CV-216).