From Sections 1, 2 and 3 of the Oregon Commercial Driver Manual

Oregon CDL General Knowledge Practice Test

Who takes it: every CDL class (A, B and C).

Inspection, safe driving and cargo: every CDL applicant takes it. 50 questions, 40 right to pass (80%).

Study mode

Practice General Knowledge

  • 10questions a round
  • 8manual sections
Exam mode

Take the General Knowledge test

  • 50questions
  • 40correct to pass
  • –no test taken yet
Sections 1–3 · p. 7–69 of the Oregon Commercial Driver Manual (AAMVA 2025 (Oregon, PDF October 2025)), opens in a new tab

A General Knowledge question to try

Your Oregon CDL expired last year and you get a speeding ticket in your car. Can you choose diversion?

Tap an answer to see if you’re right, and the page

Where it is in the Oregon Commercial Driver Manual

Your score on each part fills in as you study.

  • Manual section 1
  • Introduction: Oregon CDL rules, classes, tests, medical rules and disqualificationsNot practiced yetp. i-1 to 1-11
  • Manual section 2 · 6 topics
  • Vehicle inspectionNot practiced yetp. 2-1 to 2-7
  • Vehicle control, seeing and communicatingNot practiced yetp. 2-8 to 2-14
  • Speed, space and seeing hazardsNot practiced yetp. 2-15 to 2-25
  • Night, weather, railroad crossings and mountainsNot practiced yetp. 2-26 to 2-29
  • Emergencies, skids, crashes and firesNot practiced yetp. 2-30 to 2-37
  • Alcohol, drugs, illness and hazmat basicsNot practiced yetp. 2-38 to 2-42
  • Manual section 3
  • Transporting cargo safelyNot practiced yetp. 3-1 to 3-3

Oregon answers about this test

CDL General Knowledge Test guide30 rules, with the pages in each state's manual

Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DMV

All Oregon CDL tests