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You want to be able to drive heavy combination vehicles (like semi-trucks and tractor-trailers) in Texas, right? So you’re studying to pass the official Combination Vehicles knowledge test? We can help! You’ve probably been reading the Texas Commercial Motor Vehicle Drivers Handbook (Texas CDL Handbook 2026). That’s a good first step because the knowledge test is based on this study guide. But maybe you wish you could get some additional help to be sure you ace that test? Great! That’s what we do.
This free Texas CDL Combination practice test, one of several we offer, is also based on the official handbook. Practicing with it will reinforce what you read in the handbook, making it easier to memorize. The practice test is up to date as of January 2026 and contains 25 multiple-choice practice questions. To speed up your learning, our automated assistant can provide you with a hint and an explanation of the correct answer for each question. The practice questions and answers on this test will assess your knowledge of such topics as combination braking systems, combination driving techniques, coupling and uncoupling, and pre-trip inspections. Keep practicing your knowledge with as many of our practice tests as you can, as often as you can, until you feel confident that you can ace that Combination Vehicles knowledge test.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
Note that you may have to pass some other official knowledge tests to be able to operate certain types of vehicles or haul certain types of cargo. For example, the Air Brakes knowledge test is a virtual necessity for driving semi-trucks. (Don’t worry; we have practice tests on Air Brakes, too.)
Once you get your CDL of the appropriate class and the endorsements you need for the vehicles and cargoes you’re interested in, you can start driving the roads of Texas to earn money as a commercial driver. You’ll soon become familiar with the major commercial routes: Interstates 10, 35, and 45; U.S. Route 59 (planned to become part of the future extension of Interstate 69); and State Highway 130.
Drivers of semi-trucks and tractor-trailers should find lots of work in Texas. Truckers are in high demand to transport crude oil, natural gas, and energy production equipment. The state’s agricultural sector has created a demand for truckers to haul livestock, cotton, and dairy products, among other agricultural products. The Port of Houston (the Gulf Coast’s largest container port) has created a demand for truckers experienced in intermodal transportation. Finally, the state’s long border with Mexico has made cross-border logistics by trucking increasingly important.
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 TX 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.
