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Based on official Maryland exam questions

MD CDL Combination Vehicles Marathon

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements

Ready to put your new knowledge to the test? This Maryland CDL Combination Vehicles Marathon is a lengthy practice test that contains a compilation of all 133 questions that we have available for this MD 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”. It might take some time, but you can do this!

25 min to complete
Available in EN and ES
MD commercial driver's license
Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
This test is a Premium member exclusive. You'll get

All 650 exam-like questions specific to Maryland

Interactive learning with AI personal tutor

Unique 360° Virtual Road Simulations

Get your money back if you don’t pass

Verified for accuracy: October 2025

Reviewed by Steven Litvintchouk, M.S.
Chief Educational Researcher (ACES member)
Methodology & Editorial Policy

What to expect on the actual MD exam

20

questions

16

correct answers to pass

80%

passing score

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