All tests
 
 
 
 
 

Did you know

Save questionQuestion savedSaveSaved
Close

OK CDL Combination Vehicles Marathon

Ready to put your new knowledge to the test? This Oklahoma CDL Combination Vehicles Marathon is a massive study tool that contains a compilation of all 133 questions that we have available for this OK endorsement. If you select a wrong answer, we’ll remember that question and will display it to you again at the end of the exam until you’ve answered that question correctly. In other words, the Marathon will cycle through your missed questions until you answer each one correctly. You must make a 100% to pass. We suggest you attempt this one after you have practiced the state’s “regular” tests, but before the “Exam”. Give it your best shot!

Perfect for

  • First-time OK CDL and CLP applicants
  • CDL holders adding endorsements
  • OK CDL renewal applicants
OK commercial driver's license

What to expect on the actual exam

How many questions20
How many correct answers to pass16
Passing score80%
Unlock all 1,500+ exam-like questions for Oklahoma. Pass Guarantee

Become a member to unlock our extensive library of 1,500+ exam-like questions and get your Oklahoma ELDT certification online. Official FMCSA-approved national Entry-Level Driver Training provider.

Pass the first time, guaranteed Driving-Tests program displayed on a laptop

You may also like

OK CDL Handbook

View the most recent (2025) official OK CDL Handbook.

Open PDF
OK CDL Practice Test App

Download our free iOS or Android app and practice for your driving test offline or on the go.

CDL Genie app
10 Things You Should Do Before Your Driving Knowledge Exam (PDF)

Many people do their best but still get to the DMV overconfident and underprepared because they fail to do some of the simple...

Open PDF
10 Things You Should Do Before Your Driving Knowledge Exam (PDF)
Are you in another state?