Free Pennsylvania CDL practice tests

Practice for the Pennsylvania 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.

Pennsylvania CDL basics

• Pennsylvania issues a Knowledge Test Authorization first. It is valid for one year and gives you three tries at the knowledge tests.
• At least 15 days must pass between getting the permit and taking the skills test.
• You have one year to pass all knowledge and skills tests, or you apply again.

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.

Pennsylvania can add its own rules on top of the federal manual. Check the official site for PennDOT Driver and Vehicle Services before your test. DMVZone is not affiliated with any state agency.