All your missed questions are saved
automatically for extra practice.
It's a practice test that's automatically made up of all your missed questions. Once you finish this test, you’ll be able to revisit your Challenge Bank™ to practice and sharpen your skills.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 650+ exam-like questions, a Pass Guarantee, personalized study plans, and more.
View All Plans| 90-100 | => | 53% |
| 80-89 | => | 16% |
| 70-79 | => | 18% |
| 60-69 | => | 9% |
| <60% | => | 4% |
Interstate 495, also known as the Capital Beltway, surrounds Washington, D.C. and passes through parts of Maryland and Virginia. This beltway is one of the busiest and most important roadways in the country. Not only does it serve as a vital route for commuters, but it also connects with other major highways. Commercial drivers are familiar with every section of this famous road, often transited by heavy trucks.
As you join the traffic, it won’t take long to see a tanker. You’ll notice how it keeps a large distance from the vehicle in front, creating a long gap. Some drivers are tempted to enter or cross this gap without knowing it is a useful safety measure employed by the tanker driver. Tankers take longer to stop because their center of gravity is relatively high and constantly shifts as an effect of liquid surge.
In Maryland, anyone who wants to drive tankers must fully master this subject. You’ll need a Tank Vehicles (N) endorsement on your Commercial Driver’s License (CDL), and there are no shortcuts on how to get it. You must pass a written test that evaluates your knowledge of emergency protocols, the pre-trip inspection procedure, loading and unloading procedures, and driving techniques. You can take the written test either before or after you get your CDL.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
If that’s a lot to take in, we recommend breaking this process into smaller steps. You’ll begin with the learning phase, where you’ll familiarize yourself with the information found in the official 2026 CDL manual (Maryland CDL Handbook 2026). While this resource is helpful for new drivers, some students find the material too difficult to study.
That’s why we offer a series of Tanker Endorsement practice tests specific to the state of Maryland. Each practice test consists of 20 questions and comes with several features. For your ease of use, we have introduced a voiceover option and the ability to change the font size. If the battery of your wireless mouse suddenly depletes during a session, you can use the “Shift + ?” key combination to display a list of keyboard shortcuts.
Driver’s Ed is - nobody wants to set foot inside the MVA. That’s why millions of learners trust us for simple, visual, effective prep.
We are an officially recognized FMCSA Entry-Level Driver Training provider and a proud partner to over 2,500 libraries. We work with safety organizations like GHSA and the National Safety Council to help create safer roads for everyone.
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.
We build our practice questions from the current 2026 MD Driver Handbook and refine them using patterns recent test‑takers report.
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
We don’t collect or publish actual test items and we’re not affiliated with MVA.
