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It's a practice test that's automatically made up of all your missed questions. Once you finish this test, you’ll be able to revisit your Challenge Bank™ to practice and sharpen your skills.
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View All Plans| 90-100 | => | 14% |
| 80-89 | => | 21% |
| 70-79 | => | 43% |
| 60-69 | => | 14% |
| <60% | => | 7% |
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.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
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 December 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/.
Driver’s Ed is - nobody wants to set foot inside the DMV. That’s why millions of learners trust us for simple, visual, effective prep.
We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.
We build our practice questions from the current 2025 HI Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
We don’t collect or publish actual test items and we’re not affiliated with DMV.
