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In Delaware, you’ll need a Tanker (N) endorsement on your CDL to operate vehicles designed to carry liquids or gases in bulk tanks. This endorsement is required when the individual capacity of each tank is more than 119 gallons and the total capacity is 1,000 gallons or more. Tanker driving is an especially complex endeavor, requiring consistency and perseverance from aspiring drivers who find themselves in the learning phase. The Delaware CDL Tanker endorsement exam includes a written test that covers important topics such as liquid surge, managing the center of gravity, safe driving practices and emergency protocols. To obtain a tanker endorsement, you must score at least 80% on this knowledge exam.
If you haven’t yet done so for your CDL, you must also pass a skills test in a vehicle of the license class you are applying for. In the skills test, you must demonstrate a pre-trip inspection, basic vehicle maneuvers and the ability to safely operate a commercial vehicle on public roads. We’ll help you with the theory part so you can understand what it takes to drive a tanker in Delaware. Initially, students will familiarize themselves with the official 2026 CDL manual (Delaware CDL Handbook 2026), which explains various aspects of commercial driving in detail.
M.S., Chief Educational Researcher (ACES member)
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But how would you know if you’ve successfully memorized this material? To make it easier for you, we offer a series of CDL Tanker Endorsement practice tests specific to the state of Delaware. Use this valuable resource to evaluate your knowledge and identify areas where you might improve. Current for January 2026, these practice tests closely resemble the official written exam, allowing students to simulate as many training sessions as they need.
Companies involved in logistics, fuel supply, and manufacturing often look for drivers with a tanker endorsement on their CDL. This valuable asset puts you at an advantage in the world of commercial driving, where you can stand out with the ability to drive tankers. That’s why you should train on our practice tests for several weeks before you take the official knowledge exam. Remember, your goal is to become an expert in this field, not just to obtain a passing score.
Driver’s Ed is - nobody wants to set foot inside the DMV. 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 DE 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 DMV.
