Ohio CDL permit practice test
A Ohio Class A learner permit (CLP) takes three knowledge tests: General Knowledge, which every applicant takes; Combination Vehicles; and Air Brakes, if your truck has air brakes (Ohio CDL Manual (HSY 7605), July 2026, 1.1.1, p. 1-5). You need 80% on each test, the federal rule for every state (49 CFR 383.135).
- 384 Ohio questions, every one solved blind
- Every answer cites its HSY 7605 page
- $49 once. Nothing renews.
Independent. Not affiliated with the Ohio BMV or AAMVA.
Key facts
| Class A knowledge tests | General Knowledge, Combination, and Air Brakes if your vehicle has them | HSY 7605 p. 1-5 |
|---|---|---|
| Pass mark | 80% on each test, the federal rule for every state | 49 CFR 383.135 |
| Question counts | Not published in the manual | HSY 7605 |
The tests
The 3 knowledge tests for a Class A permit
See practice questions with answers and manual pages
Try one
General Knowledge · Seeing
Why must you make allowances when using a convex ("fisheye") mirror?
Tap an answer to see the explanation and the manual page.
Questions drivers ask
- What score do you need to pass the Ohio CDL knowledge test?
- 80% on each test. That's the federal rule for every state's CDL knowledge tests, and each test is scored on its own.
- Source: 49 CFR 383.135(a)(1)
- What tests do I need for a Class A CDL permit in Ohio?
- General Knowledge, which every applicant takes; Combination Vehicles, which you need to drive combination vehicles; and Air Brakes, if your vehicle has air brakes. Skip or fail Air Brakes and your CLP or CDL carries the L restriction, no air brakes.
- Source: Ohio CDL Manual (HSY 7605, July 2026), pp. 1-3 and 1-5
- How many questions are on the Ohio CDL permit test?
- The Ohio CDL Manual doesn't publish question counts. What's fixed: General Knowledge for everyone, Combination for Class A, Air Brakes if your truck has them, and 80% needed on each test.
- Source: Ohio CDL Manual (HSY 7605, July 2026), p. 1-5; 49 CFR 383.135(a)(1)
- Do I need ELDT before the Ohio CDL permit test?
- Not for Class A. Federal Entry-Level Driver Training must be finished before your first Class A or B skills test. HazMat is the exception: its training comes before the HazMat knowledge test.
- Source: FMCSA ELDT rule, 49 CFR Part 380
- How long is the Ohio CDL pre-trip inspection test?
- Up to 30 minutes. Ohio's manual says each pre-trip inspection test is time-limited, with a maximum of thirty minutes to complete it.
- Source: Ohio CDL Manual (HSY 7605), p. 2-1
Sources
Ohio Commercial Driver License Manual (HSY 7605), revised July 2026, Ohio Bureau of Motor Vehicles. Page references are to its printed page numbers. CDL Mile is independent and not affiliated with the Ohio BMV.
Updated for the July 2026 Ohio CDL manual (HSY 7605). Last checked November 5, 2026.
See where you stand on all three Ohio tests.
A free 15-question check, then practice that targets your weak spots. $49 for 60 days if it helps.
Get my free score →