Oregon CDL Practice Tests - All Endorsements

Before you book anything, run through the practice tests above until your scores hold steady. They mirror the real exam topics, and the free ones ask for no login. In Oregon the process actually does run through the DMV, so here the familiar name is the right one, and that is where your written test and later road test happen.

The foundation is the General Knowledge written test. Expect 50 questions and a passing mark of 80%, which is 40 correct answers. That number comes from the FMCSA and is federal, so it reads the same in Oregon as it does anywhere else. Pass it and you earn a Commercial Learner’s Permit, and that overlap is why an Oregon CDL practice test built around the permit and a CDL general knowledge test are one and the same. It also does not change with license type. Class A, B, and C applicants answer the identical written questions, and the class comes down to your skills test and the vehicle you use for it.

What makes Oregon distinct is the terrain and the cargo. The Port of Portland feeds container and bulk freight onto I-5 and I-84, timber and lumber move out of the forests on log trucks, and agricultural loads roll year round, so Combination Vehicles, Air Brakes, and Tanker knowledge earn their keep here. Because so many routes climb and drop through the Cascades, mountain-grade driving is a daily reality: controlling speed on long downgrades, picking the right gear before the hill instead of during it, and protecting your brakes from fade all matter. HazMat, Doubles/Triples, Passenger, and School Bus each stand as their own separate knowledge test, so add the ones your job calls for.

Study for comprehension, not memorization. The exam pulls from vehicle inspection, basic control, shifting, managing space and speed, reading hazards, and reacting in emergencies, and the Oregon Commercial Driver Manual is the study guide that lays out the state’s expectations. Take a sample CDL exam, mark the sections that wobble, and go back through those pages before you retest.

When your practice scores settle where you want them, take the written test, pick up your CLP, and schedule your CDL skills test with the Oregon DMV to finish the job.