Ohio CDL practice test
Published Updated Licensing sources checked:
How do I prepare for the Ohio CDL knowledge test?
If you are preparing for your first permit, start with general knowledge and the official Ohio instructions below. If your vehicle needs air brakes or combination vehicles, add those federal study sets; for hazardous materials, use the separate hazmat set. Compare the state’s published test rules with its current manual before you test. These practice sets teach federal topics and do not copy the state exam.
This page is study material. It is not the Ohio state exam, and it does not copy state test questions. Check the official Ohio pages below before you test.
| Your situation | Start with… |
|---|---|
| A quick first try | Take a 10-question warm-up |
| Ready for a longer attempt | Take the 50-question general knowledge exam |
| Need state rules or documents | Check the Ohio application steps |
Ohio commercial driver manual (PDF) — access attempted; manual returned not found . Study its rules alongside our federal-standard bank. Our 50-question exam length is a study setting; use the official counts below for Ohio.
Ohio BMV’s CDL page checked November 9, 2026 requires knowledge testing for the vehicle class, endorsements and removal of the air brake restriction. It does not print question counts or a passing score. Its linked HSY 7605 manual returned a not-found response, so the full manual could not be verified. These figures remain unknown here; our practice lengths are study settings.
Which tests do I need in Ohio?
| Your vehicle or work | Required study and tests |
|---|---|
| All permit applicants | Start with general knowledge. Official requirements. Federal warm-up · Federal exam mode |
| Class A combination vehicle | Study combination vehicles and check class requirements. Official requirements. Federal warm-up · Federal exam mode |
| Vehicle with air brakes | Study air brakes and check restriction rules. Official requirements. Federal warm-up · Federal exam mode |
| Passenger vehicle | Add the passenger endorsement tests. Official requirements. Federal warm-up · Federal exam mode |
| School bus | Study school bus and passenger topics; check state testing requirements. Official requirements. Federal warm-up · Federal exam mode |
| Tank vehicle | Add the tank vehicle knowledge test. Official requirements. Federal warm-up · Federal exam mode |
| Hazardous materials | Add the hazmat knowledge test and check approval and training steps. Official requirements. Federal warm-up · Federal exam mode |
| Doubles or triples | Study doubles and triples and check endorsement requirements. Official requirements. Federal warm-up · Federal exam mode |
Confirm your class, endorsements and air brake restrictions with BMV. The linked manual could not be retrieved on this check; ask BMV for the current manual before testing.
Before booking the exam, check Ohio CDL application steps and official fee lines.
| Test | Questions | To pass | Official source |
|---|---|---|---|
| General knowledge | Not printed on the pages checked | Not printed on the pages checked | State source |
| Combination vehicles, for Class A | Not printed on the pages checked | Not printed on the pages checked | State source |
| Air brakes, if applicable | Not printed on the pages checked | Not printed on the pages checked | State source |
| Passenger | Not printed on the pages checked | Not printed on the pages checked | State source |
| Tank vehicle | Not printed on the pages checked | Not printed on the pages checked | State source |
| School bus | Not printed on the pages checked | Not printed on the pages checked | State source |
| Hazardous materials | Not printed on the pages checked | Not printed on the pages checked | State source |
| Doubles and triples | Not printed on the pages checked | Not printed on the pages checked | State source |
Ohio language, permit and booking notes — checked 2026-11-09
Take the required knowledge tests in person at a driver exam station; permit or license issuance is handled by a deputy registrar. Official source — checked .
BMV lists tanker, passenger and school bus endorsements for a commercial learner permit. Check the separate license endorsement and restriction rules before choosing tests. Official source — checked .
The page lists fees for skills-test components but does not print a separate knowledge-test fee. Confirm that fee with BMV. Official source — checked .
For unknown figures, check with the Ohio licensing agency. A blank count is not an estimate.
Federal study sets, not the Ohio exam
Use general knowledge, air brakes, combination vehicles, and hazmat to study the federal topics. Finishing one of those sets does not mean you passed the Ohio test.
Sources
- Ohio BMV: CDL application and testing — checked
- Ohio commercial driver manual (PDF) — checked . The manual link on the BMV page returned HTTP 404; full handbook contents were not verified.