To drive Longer Combination Vehicles (LCVs) in Maryland, you’ll need a Class A CDL (Commercial Driver’s License) with a Double/Triple Trailers ("T") endorsement. Before you begin the licensing process, you will spend several weeks studying and mastering general commercial driving theory. This subject is thoroughly discussed in the official Commercial Driver’s License Manual (Maryland CDL Handbook 2026). Because it is easy to miss important details at first, we recommend reading this manual multiple times during your learning phase.
Pay attention to Section 7, which teaches you how to safely pull double and triple trailers. You will learn parking techniques, coupling and uncoupling twin and triple trailers, pre-trip inspections specific to LCVs, and emergency situations. To get a "T" endorsement on your CDL, you must pass the official Double/Triple Trailers Knowledge Exam with a minimum score of 80%. The good news is that you won’t have to take a specialized skill test.
Our Maryland CDL Double/Triple Trailers Practice Tests are designed to help you achieve a passing score on your first attempt. Now you’re about to take the fourth practice test in this series, which includes questions similar to those you will get on exam day. Please read every question twice and carefully consider all answer choices. For your convenience, we have omitted any timer from this practice test.
You’ll find the test settings menu in the top-right corner of the page. This menu includes several features, such as voice-over, keyboard shortcuts, a language switcher, and a slider for adjusting the font size. Customize your testing experience and prioritize comfort. Your progress gets automatically saved as long as you’re not in private browsing mode. Resume an interrupted practice session from the last question you answered and continue the practice test without losing your progress.
Start today and take the first step toward a rewarding career in commercial driving. You can also check out our Free Maryland CDL Permit Practice Test, which is designed to help you become a safe and responsible driver. The roads of Maryland await you, but if you want to pull double trailers across the state, you must put in the time and effort to obtain the "T" endorsement.