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KY CDL Air Brakes “Endorsement” Practice Test 2 2025

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2025 KY commercial driver's license manual
  • Triple-checked for accuracy
  • Updated for August 2025

The best incentive for removing the “L” air brake restriction from your Kentucky Commercial Driver’s License (CDL) is qualifying for more driving opportunities. Without an extensive knowledge of air brake systems, you won’t be able to pursue employment with many companies along the Bourbon Trail that require drivers to be air-brake qualified. Air brakes are critical to providing enough braking force for drivers to regulate their speed while transporting large amounts of weight. Most high-weight vehicles, such as semi-trucks and full-size buses, are equipped with air brakes, allowing drivers to safely navigate sharp turns and heavily congested traffic. Learning to operate air brakes preserves your safety and helps you get the maximum benefits from your CDL, but you must begin with training from a competent source.

Our Kentucky KSP CDL air brake “endorsement” practice test provides a user-friendly format that promotes an encouraging learning process. You must pass a skills test in an air-brake-equipped vehicle (including an air brake inspection) and an official Air Brakes knowledge test. The practice test uses 30 multiple-choice questions to evaluate your current knowledge level and identify the information you should better understand. With this interactive capability, the practice test allows you to develop a study plan to correctly answer the minimum required 80% of the 25 questions on the official knowledge test to pass. The practice test is designed to address your specific learning barriers and help you eliminate them. You will experience significant growth in your knowledge of air brake systems and increase your chances of passing the official knowledge test on your first try.

Using this Kentucky KSP CDL air brake “endorsement” practice test, you will be provided comprehensive instruction on how these systems operate. The practice test is based on the most recent Kentucky KSP CDL manual (Kentucky CDL Handbook 2025) and is up to date as of August 2025. With the practice test, you won’t feel frustrated by getting a question wrong because a detailed explanation of the correct answer will be given to help you gain a better understanding. This interactive design sets the practice test apart from any traditional study method. The practice test makes the information you need to know readily available and shows you how to apply it to various driving situations.

In comparison, traditional study methods are one-dimensional and designed to train you to memorize the answers to the questions. These tactics are outdated and much less effective in absorbing the information you must know to enhance your driving skills. The practice test uses an innovative approach to help create your personal success plan. You can place your full confidence in its teachings because it references the most authoritative source available. The end result is that you will be fully equipped to meet the challenges of the official knowledge test with advanced driving skills.

While Corvettes roll off the assembly line in Bowling Green, you can develop high-performance driving skills with the practice tests at https://driving-tests.org/kentucky/.

KY commercial driver's license
  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Triple-checked for accuracy

About this test

5 out of 5 • 1 votes
7 min to complete
Available in EN and ES
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

What to expect on the actual KY KSP exam

25

questions

20

correct answers to pass

80%

passing score

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