Free Ohio CDL practice tests

Practice for the Ohio commercial driver’s license knowledge tests. The questions follow the federal CDL manual that every state builds its tests on, and every answer is explained.

Ohio CDL basics

• The commercial learner permit is valid for 12 months, and you take the written tests at any driver exam station.
• The skills test has three parts: pre-trip inspection (30-minute limit), basic maneuverability (40-minute limit) and the road test. The whole test must finish within three hours.
• If you fail a part, there is a two-day wait before you retest.

Free tests you can take now

• CDL quick practice test10 mixed questions to see where you stand.
• CDL pre-trip inspection testWhat to check on your vehicle before every trip.
• CDL air brakes basics testCompressor, governor, tanks and warnings.
• CDL combination vehicles basics testTrailers, rollovers and coupling.

What you can practice

• GK
  General knowledge

  Required for every CDL. Inspection, vehicle control, hazards, cargo and the rules.

• A
  Air brakes

  Compressor, tanks, warnings and the brake checks. Needed to drive any air-braked vehicle.

• CV
  Combination vehicles

  Coupling, uncoupling, rollovers and trailer skids. Needed for Class A.

Ohio can add its own rules on top of the federal manual. Check the official site for Ohio Bureau of Motor Vehicles before your test. DMVZone is not affiliated with any state agency.