CDL Written Test: Doubles and Triples

You will have to take one or more knowledge tests, depending on what class of license and what endorsements you need. This section has information you need to pass the CDL knowledge test for driving safely with double and triple trailers. It talks about how important it is to be very careful when driving with more than one trailer, how to couple and uncouple correctly, and about inspecting doubles and triples carefully. http://cdlcollege.com