Ohio Combination Vehicles Test — Quick Facts
FormatWritten knowledge test
Questions20 questions
Passing score80% (16/20)
Min. age (intrastate / interstate)18 / 21
CLP hold before skills test14 days min
Government feeSee Ohio DMV →
Start the Free Ohio Combination Vehicles Test →
20 questions · one per page · your progress saves automatically
Ohio Combination Vehicles Practice Tests
5 full practice tests, each with 20 questions drawn from the Ohio CDL question bank. Your score and progress save as you go.
About the Ohio Combination Vehicles Test
Ohio requires the Combination Vehicles test for a Class A CDL — pulling a tractor-trailer. It covers coupling and uncoupling, the fifth wheel, trailer air lines, off-tracking, and preventing trailer skids and rollovers.
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From Pedro, behind the wheelPulling a trailer is a different animal, and coupling is where new drivers get nervous. The test drills the steps in exact order — memorize the coupling and uncoupling sequence until it's automatic.
What Test-Takers Miss Most
- 1The coupling and uncoupling sequence
- 2Trailer air supply and emergency lines
- 3Preventing trailer skids and rollover
Ohio CDL Requirements & Fees
Ohio follows the federal CDL framework: a minimum age of 18 for intrastate driving and 21 for interstate, a commercial learner's permit you must hold at least 14 days before the skills test, and the 80% passing standard. License fees and retake rules are set by Ohio and change from time to time, so check the official source below for current amounts before you go in.
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Official Ohio CDL Handbook & FeesCurrent requirements, fees, and the manual this test is based on
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Frequently Asked Questions
How many questions are on the Ohio CDL Combination Vehicles test?
The Combination Vehicles test has 20 questions, and you need 16 correct to pass at the 80% threshold used across the U.S. under FMCSA standards. Exact counts can vary slightly by state, so confirm with the Ohio CDL handbook.
What score do I need to pass in Ohio?
You need 80% — that's 16 of 20 questions correct on the Combination Vehicles test.
How much does a Ohio CDL cost?
CDL fees are set by Ohio's licensing agency and change periodically, so we don't quote a figure that could go stale. Check current amounts on the official Ohio CDL page.
Is this Ohio practice test free and accurate?
Yes — it's completely free, based on the Ohio CDL handbook, and written and verified by Pedro Marin, an active CDL holder. No registration required.
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