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Interested in driving combination vehicles in Hawaii? You’ve come to the best place to prepare! To legally operate combination vehicles, such as tractor-trailers, you must pass the Combination Vehicles Knowledge Test, one of several key requirements for obtaining a Class A Commercial Driver’s License (CDL). This license is required to operate any combination of vehicles with a gross combination weight rating (GCWR) of 26,001 pounds or more, with a towed vehicle’s gross vehicle weight rating (GVWR) that exceeds 10,000 pounds (Hawaii CDL Handbook 2026).
In addition to the knowledge test, Entry-Level Driver Training (ELDT) must be completed with a provider listed on the Training Provider Registry (TPR) before scheduling your CDL skills test. You must also pass the Hawaii CDL General Knowledge Test to obtain your Commercial Learner’s Permit (CLP). This permit must be held for a minimum of 14 days before taking the behind-the-wheel skills test in a combination vehicle to receive your Class A CDL.
The Hawaii Combination Vehicles Knowledge Test requires that you answer at least 16 questions correctly (obtaining a minimum passing score of 80%). If you fail, you must wait at least one business day and pay a retesting fee before trying again. Our experts have created a series of combination vehicle practice tests that will help you pass on your first attempt!
M.S., Chief Educational Researcher (ACES member)
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Our Free Hawaii CDL Combination Practice Test mimics the real test format and includes immediate feedback to improve recall. We cut the fluff out of our study materials, focusing on only the material that may be tested. Safe driving and braking practices for combination vehicles, prevention of trailer skids and jackknives, proper coupling and uncoupling procedures, air brake systems for combination vehicles, and inspection steps make up the majority of the study topics. Check out another practice test here: https://driving-tests.org/hawaii/hi-cdl-combination-test/.
Earning your Class A CDL in Hawaii opens doors to industries like freight logistics, agriculture, construction, and shipping. Major highways include Interstate H-1, H-2, and H-3 on Oahu, as well as regional routes on the Big Island and Maui. This intricate system of transit offers wonderful opportunities to Class A CDL holders.
You’ll also need to pass the Air Brakes Knowledge Test, as most combination vehicles are equipped with them! No passed Air Brakes Test, no driving CMVs. Check out our series of Air Brakes Practice Tests to prepare: https://driving-tests.org/hawaii/hi-cdl-air-brake-practice-test/. Also, consider adding endorsements to your CDL for additional career opportunities. Check out the Hazardous Materials Endorsement Practice Test here: https://driving-tests.org/hawaii/hi-cdl-hazmat-practice-test/. Whatever your Hawaii needs, we have you covered!
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 2026 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.
