UT CDL Air Brakes “Endorsement” Practice Test 2 2025

It’s important to know that gaining access to the best driving opportunities requires you to avoid an “L” restriction on your Utah Commercial Driver’s License (CDL). The “L” restriction does not allow you to operate vehicles equipped with air brakes. This class of vehicles includes most semi-trucks, tractor-trailers, and full-size buses. Air brakes create the braking force necessary to slow down or completely stop while transporting heavy loads. Icy roads, steep grades, and stalled traffic require you to adjust your speed, and a working knowledge of air brake systems enables you to do it safely. The challenge is finding a resource capable of teaching you the proper use of air brakes, allowing you to safely navigate potentially dangerous road situations.

Our Utah DMV CDL air brake “endorsement” practice test strategically prepares you to meet the requirements for removing the air brake restriction from your CDL. These requirements consist of passing a skills test in an air brake-equipped vehicle (including conducting an inspection of the air brakes) and passing an Air Brakes Knowledge Test. To pass and avoid the one-day waiting period for retesting, you must correctly answer at least 80% of the 25 questions on the official knowledge test.

This Utah DMV CDL air brake “endorsement” practice test helps you to effectively identify and target your most challenging learning obstacles. Using 30 questions, similar to those on the official knowledge test, the practice test provides a real-time evaluation of your air brake knowledge. The results that you receive can serve as the basis for creating a study plan to learn the information you must know to pass the official knowledge test.

With an eye toward the future of learning, the practice test interactively provides you with feedback to explain the answers to the questions you get wrong. You can rely on the accuracy of this information because it comes directly from the most recent Utah DMV CDL manual (Utah CDL Handbook 2025) and is up to date as of September 2025. There is no need to consult additional resources.

Unlike the practice test, you cannot depend on traditional study methods to address your personal learning barriers. Traditional study methods focus on training you to memorize the answers to the questions. This approach ignores your need for additional instruction to solidify your knowledge and forces you to search for the necessary information on your own. The practice test makes the information you need readily available, boosts your confidence, and increases your chances of passing the official knowledge test on your first try.

Ogden claims to be “Still Untamed,” but you can maintain your self-control by driving there with the exciting driving skills developed using the practice tests at https://driving-tests.org/utah/.