When coupling: Question When coupling: Answers You can assume all vehicles are the same. Be sure that you are coupling correctly. Cracks in the mounting are acceptable. Explanation Incorrect coupling and uncoupling of combination vehicles can have extremely dangerous consequences. This questions appears in the following tests: Arizona Combination Iowa Combination Iowa Combination Kentucky Combination Minnesota Combination New Mexico Double New Mexico Combination Oklahoma Combination Oklahoma Combination South Carolina Combination Tennessee Combination Utah Combination Vermont Double Wyoming Combination