Free Ohio CDL Practice Tests
Getting your CDL in Ohio starts with the written knowledge tests at the Ohio Bureau of Motor Vehicles. Those exams are built on the federal CDL standards, so the fastest way to prepare is to practice against the same material — free, unlimited retakes, every answer explained. Aim for consistent scores above 80%: that's the pass bar the real exams use.
Ohio practice tests by topic
- OH General Knowledge practice test
- OH Air Brakes practice test
- OH Combination Vehicles practice test
- OH Pre-Trip Inspection practice test
- OH Hazardous Materials (H) practice test
- OH Tanker (N) practice test
- OH Doubles & Triples (T) practice test
- OH Passenger (P) practice test
- OH School Bus (S) practice test
Sample practice questions
The following-distance rule for heavy vehicles below 40 mph is:
Answer: 1 second per 10 feet of vehicle length — 1 second per 10 feet of length; add 1 second above 40 mph.
Which inspection produces the Driver Vehicle Inspection Report (DVIR)?
Answer: Post-trip — The DVIR is written at the end of the day, after the post-trip inspection.
The reason to spot a hazard early is to:
Answer: Have time to act before it becomes an emergency — Early recognition buys time so a hazard never becomes an emergency.
Official source: Ohio Bureau of Motor Vehicles
CDL licensing in Ohio is administered by the Ohio Bureau of Motor Vehicles. Fees, scheduling, forms, and the official Ohio CDL manual live on the official site: Ohio BMV — official CDL page (verified 2026-08-09).
Truckcess is not affiliated with or endorsed by the Ohio Bureau of Motor Vehicles. Our practice tests cover the federal CDL knowledge standards (49 CFR Part 383) that every state exam is built on; exact question counts, fees, and procedures vary by state and change over time — the official site is always the authority.
How the Ohio CDL process works
- Study the official Ohio CDL manual from the Ohio BMV — state exams draw from it.
- Pass the written knowledge tests to earn your Commercial Learner's Permit (CLP). You can take the CLP knowledge tests before completing ELDT.
- Complete Entry-Level Driver Training (ELDT) from a provider on the federal Training Provider Registry — required before your skills (driving) test. Truckcess provides the theory portion. (Exception: for the HazMat endorsement, ELDT theory is required before its knowledge test.)
- Pass the three-part skills test — vehicle inspection, basic control, and road driving.
The full prep course — every practice test, narrated lessons, the spoken pre-trip trainer — is one-time (Class A $69, Class B $59) with 12 months of access: mytruckcess.com/cdl.
CDL practice tests by state · Meet the Course Director · The completion certificate