CDL Combination Vehicles Endorsement Study Guide [PDF]

CDL Combination Vehicles Endorsement Study Guide [PDF]: Free Download for Commercial Driver’s License Permit Test (CDL) Combination Vehicles Endorsements in the USA, UK, and Canada. This study guide would help your upcoming CDL Permit test 2024 written exam.

This section provides information needed to pass the tests for combination vehicles (tractor-trailers, doubles, triples, straight trucks with trailers). The information is only to give you the minimum knowledge needed for driving common combination vehicles. You should also study Section 7 if you need to pass the test for doubles and triples.

Combination vehicles are usually heavier, longer, and require more driving skills than single commercial vehicles. This means that drivers of combination vehicles need more knowledge and skill than drivers of single vehicles.

CDL Combination Vehicles Study Guide [PDF]

CDL Combination Vehicles Endorsement

Anyone who drives a commercial motor vehicle. The definition of a commercial motor vehicle is: a combination of vehicles with a gross combination weight rating of 26,001 or more pounds, provided the vehicle being towed is in excess of 10,000 pounds gross vehicle weight rating.

You should study the Air Brakes section before reading this. In combination vehicles, the braking system has parts to control the trailer brakes. There is a federal requirement that each state have minimum standards for the licensing of commercial drivers.

You will have to take one or more knowledge tests, depending on what class of license and what endorsements you need. The CDL knowledge tests include: The combination vehicles test, which is required if you want to drive combination vehicles.

CLASS A – combination vehicle with a gross combination weight rating of 26,001 pounds or more, provided the gross vehicle weight rating of the vehicle being towed is in excess of 10,000 pounds.


License Knowledge Test (written) Entry-Level Driver Training *Skills Test
Class C 50 questions YES YES

After obtaining knowledge test authorization(s) and passing the required knowledge test(s), you will also need to take a skills test in the class and the type of vehicle you intend to drive. The skills test includes a pre-trip inspection, an off-the-road maneuver, and a vehicle parking exercise. Once again, a more detailed description of this test can be found in the CDL Driver’s Manual.

Skills testing cannot be taken until 15 days after the knowledge testing is passed and a permit is issued. However, you may call the number below to schedule skills testing immediately after passing a knowledge test or schedule on-line.

Please note: If Entry-Level Driver Training is required it must be completed prior to taking your skills test. For more information on Entry-Level Driver training please visit respective DMV website

CDL Combination Vehicles Study Guide [PDF]

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