Ohio CDL Practice Test 2026
Study for the Ohio CDL permit test with free state-focused questions, manual-based explanations, and practice paths for General Knowledge, Air Brakes, and Combination Vehicles.
100% Free
No subscription required. Unlimited practice attempts.
Based on 2026 Manual
Questions updated for the current Ohio CDL handbook.
State Valid
Valid for all Ohio DMV/DPS locations.
Select a Practice Test
General Knowledge
50 QuestionsRequired for all CDL classes. Covers vehicle control, hazardous materials basic, and safety.
Air Brakes
25 QuestionsRequired if you plan to drive a vehicle equipped with air brakes.
Combination Vehicles
20 QuestionsRequired for driving Class A tractor-trailer combinations.
Hazmat
30 QuestionsFor hauling hazardous materials. One of the toughest endorsements.
Getting Your CDL in Ohio
To get a Commercial Driver License in Ohio, start by studying the Ohio CDL Manual HSY 7605. The manual explains which sections match the knowledge tests, endorsements, restrictions, vehicle inspection test, basic control test, and road test.
Ohio CDL Permit Test Focus Areas
Ohio applicants should study the General Knowledge material first, then add sections for the vehicle they plan to drive. Air Brakes, Combination Vehicles, Passenger, School Bus, Hazmat, Tank Vehicles, and Doubles/Triples each require focused study when they apply.
The Ohio CDL skills test also includes vehicle inspection, basic control, and road driving. That is why this page includes state-focused permit questions and links to pre-trip inspection practice.
Common Questions about the Ohio CDL
Do I need to take all the tests?
No. The General Knowledge test is required for everyone. Other tests depend on the vehicle you plan to drive (e.g., Air Brakes if your truck has them, Combination if you drive a tractor-trailer).
How to Prepare
- Read the official Ohio CDL Manual HSY 7605 manual carefully.
- Take our free practice tests until you consistently score above 80%.
- Focus on the "Air Brakes" section if applicable, as it's a common failure point.
Ohio CDL Permit Practice Questions
Review original Ohio-focused CDL questions based on the official state CDL manual.