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 | => | 3% |
| 80-89 | => | 20% |
| 70-79 | => | 13% |
| 60-69 | => | 23% |
| <60% | => | 40% |
From the bustling streets of Portland to the winding mountain roads of the Cascades, Oregon’s roads present a unique challenge to new commercial drivers. Driving a commercial vehicle safely in this state requires more than basic driving skills. Those pursuing a Class B CDL (Commercial Driver’s License) must dedicate several weeks to complete the licensing process. The DMV oversees this process and requires all applicants to pass several exams, a vision screening, and a medical examination (unless they only plan to engage in excepted commerce).
The official general knowledge test consists of 50 multiple-choice questions that will evaluate your understanding of safe driving practices, rules of the road, the air braking system, and handling emergencies. This exam is based on the official Oregon Commercial Driver Manual (Oregon CDL Handbook 2026), which you should read at least once during your learning phase. Since most commercial vehicles in Oregon are equipped with air brakes, you must also pass the official air brakes knowledge test to legally operate them. Each exam must be passed with a minimum score of 80%.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
Our Oregon CDL Class B Practice Test is designed to support students unfamiliar with commercial driving theory. You can use it to evaluate your knowledge before exam day or as an ongoing educational resource. Each mistake becomes a learning opportunity, allowing you to review and practice until you consistently achieve passing scores. The detailed explanations will help you understand the reasoning behind each correct answer. Pay attention to this feedback and note it in a notebook or notebook app.
Start today and dedicate the following days to studying the basics from the official commercial driver manual. Use our Oregon CDL Class B Practice Test to gradually improve your knowledge and prepare for your dream career. Keep track of your scores and watch your performance improve with each practice session. On exam day, you’ll go to the DMV location prepared and ready to ace your theory exams on your first attempt.
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 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.
