When coupling a triple trailer rig: Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question When coupling a triple trailer rig: Answers The trailer immediately behind the cab should be coupled first. The rear trailer should be coupled first. The lightest trailer should be coupled first. The order in which trailers are coupled is not important. Explanation When coupling a triple trailer rig, you should first couple the trailer immediately behind the cab. Connect the second and third converter dollies and trailers in order. This questions appears in the following tests: Georgia Double South Dakota Double