CDL Permit Prep Combination Vehicles


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The ProDriverU Combination Vehicles CDL permit test preparation tools are designed to help you study for the Combination Vehicles written test you will take if you want to get a CDL to drive a Combination Vehicle.

The Combination Vehicles CDL permit knowledge test is for commercial drivers if your vehicle is a “combination” of a truck and a trailer (or trailers).  This includes tractor-trailer, double or triple trailers, or straight truck with a trailer).

The ProDriverU tools in the course contain information you need to learn about combination vehicles. If you want to drive a combination vehicle, you must take a test on this information to get a CDL with the Combination Vehicle Endorsement. These written tests are usually administered at your local DMV office.

The ProDriverU test questions are very similar to the questions you will see on the state CDL permit written test.

The following topics are included in Combination Vehicles:

  • Driving Combinations
  • Combination Vehicle Air Brakes
  • Anti-lock Brake Systems
  • Coupling and Uncoupling
  • Inspecting Combinations


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