All your missed questions are saved
automatically for extra practice.
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.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 650+ exam-like questions, a Pass Guarantee, personalized study plans, and more.
View All Plans| 90-100 | => | 0% |
| 80-89 | => | 50% |
| 70-79 | => | 50% |
| 60-69 | => | 0% |
| <60% | => | 0% |
In pursuit of the most innovative study methods, you won’t find any better resource than our practice test series. You’ll find our third free Oregon DMV CDL Double/Triple Trailer endorsement practice test is built on a foundation as solid as the Pittock Mansion. Using the practice test, you’ll rapidly expand your driving skills to include towing multiple trailers.
If you want to add a “T” endorsement to your Oregon commercial driver’s license (CDL), it will take an in-depth understanding of how to pull multiple trailers. The practice test is expertly designed to deliver results that are raising the bar for adequate driver training. You will find a supportive and encouraging approach to mastering the skills required for obtaining your endorsement.
Other on-line resources, including study guides, can’t match the exceptional results you’ll experience using our Oregon DMV CDL Double/Triple Trailer endorsement practice test. The practice test is strategically designed to help you pass the official knowledge test required to get your endorsement. You won’t be scurrying around to find essential information to better understand confusing information. Instead, the practice test makes this information conveniently available to you. You will be provided with 20 questions, similar to those on the official knowledge test, to simulate the actual testing experience and direct your attention to the information you need to focus on studying. In the event you get a question wrong, the practice test responds with a detailed explanation of the correct answer. You won’t have the same experience using a study guide because they merely train you to memorize the answers to the question. The practice test fully equips you with a clear understanding of the information most critical to your success.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
This Oregon DMV CDL Double/Triple Trailer endorsement practice test uses undisputable information to enhance your driving skills. You must correctly answer at least 80% of the 20 questions on the official knowledge test to pass, and the practice test can efficiently prepare you. The practice test is based on the most recent Oregon DMV CDL manual (Oregon CDL Handbook 2025) and is up to date as of December 2025. With information taken directly from this authoritative source, you can be assured of its accuracy and trustworthiness. You will be able to successfully apply the information to various driving scenarios and increase your chances of passing the official knowledge test on your first try.
Thor’s Well is the ”drain pipe of the Pacific,” but you can absorb professional driving skills using the practice tests at https://driving-tests.org/oregon/or-cdl-practice-test/.
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 OR 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.
