Oregon Air Brakes CDL Practice Test
Practice for your Air Brakes CDL exam with questions based on the official Oregon CDL handbook
Updated: August 2026
What's on the Oregon Air Brakes CDL test
Answering from memory beats re-reading — retrieval practice roughly doubles what you remember a week later. These free questions are modeled on the official Air Brakes CDL knowledge test.
- Questions
- 25
- To pass
- 20/25 correct (80%)
- Updated
- June 2026
- 100% free
The Oregon CDL Air Brakes test follows the AAMVA standard used by most states: 25 questions, with 20 correct answers (80%) needed to pass. A CDL learner's permit in Oregon costs $40 (Oregon Driver and Motor Vehicle Services (DMV), division of Oregon Department of Transportation (ODOT) fee schedule, June 2026).
Start the practice testAll Oregon CDL tests
The Oregon Air Brakes test is one section of the Oregon CDL knowledge exam. For the full set — general knowledge questions, every endorsement section, and Oregon’s permit requirements in one place — go to the free Oregon CDL practice test.
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About the Air Brakes Test in Oregon
The Air Brakes test is required for anyone operating a vehicle equipped with air brakes in Oregon. It covers how air brake systems work, dual air brake systems, inspecting air brakes, and using them safely in all conditions.
The Air Brakes test is part of the CDL written exam administered by the Oregon Department of Motor Vehicles. You must pass this test along with the other required written tests to receive your Commercial Learner's Permit (CLP) in Oregon.
Our practice questions are built from the official Oregon CDL handbook and federal FMCSA regulations. Each question includes a detailed explanation to help you understand the material, not just memorize answers.
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