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HI CDL Air Brakes “Endorsement” Practice Test 2 2025

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

Shakas up! You shouldn’t stress over having an air brake restriction attached to your Hawaii Commercial Driver’s License (CDL). While air brake restrictions limit your driving opportunities, you should understand that their purpose is to prevent you from operating a vehicle requiring more extensive training. Most semi-trucks, tractor-trailers, and full-size buses are equipped with air brakes. Since these vehicles typically transport significant amounts of weight, air brakes allow you to apply sufficient braking force to navigate sharp turns and maintain a safe distance in heavy traffic. Companies such as Honolulu Freight and Pacific Commercial Services possess a large number of air brake-equipped vehicles in their fleets. By removing the air brake restriction, you can begin to pursue more driving opportunities.

With our Hawaii DMV CDL air brake “endorsement” practice test, you will gain access to the most innovative on-line study methods available. You must meet a few requirements to become air brake qualified, including successfully completing a skills test (featuring an air brake inspection) and passing an official knowledge test. You must currently answer a minimum of 80% of the 25 questions on the official knowledge test to attain a passing score. The practice test mirrors the official knowledge test and includes 30 questions similar to the ones you may see on it. You will be able to assess your readiness to achieve the required score and discover the information you should study more. It’s a great strategy for giving you a push-start toward achieving the required passing score.

This Hawaii DMV CDL air brake “endorsement” test deserves to be your top choice in selecting a competent resource to teach you about air brakes. While you may have previously used more traditional study resources, such as study guides, you will find that the practice test delivers more comprehensive instruction and rapidly increases your knowledge. In fact, the practice test will equip you with the skills and confidence to increase your chances of passing the official knowledge test on your first try.

Based on the most recent Hawaii DMV CDL manual (Hawaii CDL Handbook 2025) and up to date as of August 2025, the practice test places the most crucial information you need to better understand at your fingertips. If you get a question wrong, the practice test provides a detailed explanation of the correct answer from the CDL manual. You won’t receive this kind of help from a study guide. In fact, you would need to consult additional resources to look for the required information. Study guides train you to memorize the answers to the questions. In contrast, the practice test immediately responds to your misconceptions, provides the necessary information to teach you, and shows how to apply it to various driving scenarios. The practice test combines authoritative information with the convenience of a single, interactive resource to create an innovative learning experience.

The kukui nut is a symbol of enlightenment in Maui, and you can exhibit brilliant driving skills by using the practice tests at https://driving-tests.org/hawaii/.

HI 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 HI DMV exam

25

questions

20

correct answers to pass

80%

passing score

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