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MD CDL Combination Vehicles Practice Test 4 2025

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

Maryland’s strategic location along the mid-Atlantic corridor makes it one of the nation’s most critical freight transportation hubs. Interstate 95 connects New York to Washington, D.C., while Interstate 70 links the Midwest to the East Coast. These routes carry heavy commercial traffic through the Old Line State. Moreover, the port of Baltimore ranks among America’s busiest ports, further supporting the state’s major industries.

If you are considering a career in commercial driving, you shouldn’t delay taking the first step. There’s an increasing demand for Class A CDL holders who are able to operate combination vehicles. To legally drive semi-trucks and tractor-trailers, you must complete the licensing process. The Motor Vehicle Administration (MVA) requires all applicants to pass the official combination vehicles knowledge test (plus additional requirements), which covers topics such as coupling and uncoupling procedures, jackknife prevention, and commercial driving regulations. A minimum score of 80% is required to pass, leaving little room for error.

Our Maryland CDL Combination Vehicles Practice Tests can be a game-changer when used regularly. Each practice test in this series has been recently updated for December 2025. The practice test that you’re about to take consists of multiple-choice questions based on the official Commercial Driver’s License Manual (Maryland CDL Handbook 2025), specifically Section 6 (Combination Vehicles).

Beginners unfamiliar with this subject should ignore their score during the initial stages of their learning phase. Instead, they can use this tool for educational purposes. We provide a detailed explanation for every question, helping you understand the reasoning behind the correct answer. This feature can help you learn from your mistakes immediately after they occur, so you won’t have to wait until the test ends to know what went wrong.

As part of the licensing process for the Class A CDL, all applicants must pass the official general knowledge test. This exam consists of 50 questions on general commercial driving theory. Our Free Maryland CDL Permit Practice Test covers this subject in detail, helping you master it through active learning. Dedicate the following weeks to building a strong foundation for your driving skills and take the first step toward a successful career as a commercial driver!

Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives
MD CDL Combination Vehicles Practice Test 4 2025
MD commercial driver's license
Based on official MD exam questions
Steven Litvintchouk, M.S., Chief Educational Researcher at Driving-Tests.org

Authored and fact-checked by Steven Litvintchouk, M.S.

Chief Educational Researcher, Driving‑Tests.org (ACES member)
Last verified for accuracy on
Methodology & Editorial Policy

10 min to complete
Available in EN and ES

What to expect on the actual MD permit test

20

questions

16

correct answers to pass

80%

passing score

More MD CDL test resources

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