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View All PlansIn the First State, opportunities abound for CDL drivers. With a Delaware Class A CDL, you’re just one step away from unlocking new earning potential by adding a Doubles/Triples (T) Endorsement. This endorsement authorizes you to legally operate double and triple trailer combinations, giving you access to high-demand, higher-paying positions with carriers like FedEx Freight, XPO Logistics, and Ruan Transportation.
In Delaware, the Doubles/Triples Knowledge Test is based on Section 7 of the Delaware Commercial Driver License Manual. When you take the official exam, you’ll face 20 multiple-choice questions, and you must answer at least 16 correctly (80%) to pass. If you fail, you must wait at least one business day before retesting, and additional fees apply after three failed attempts.
We can help you pass on your first try. Our Free Delaware CDL Doubles/Triples Knowledge Practice Tests are built to mirror the Delaware DMV format and include scientifically proven features to enhance your learning process. These include real-time feedback, hints, and AI-powered study tools. Unlike generic study guides, our practice tests are designed to improve retention and speed your learning process.
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Our practice materials are drawn directly from the Delaware CDL Manual and cover all tested subjects, including preventing “crack-the-whip” rollovers, coupling and uncoupling multiple trailers, avoiding jackknifes and trailer rollovers, proper braking techniques with air brakes, and inspection procedures for combination vehicles.
To operate doubles in Delaware without restriction, you must also pass the Air Brakes Knowledge Test and take your skills test in a vehicle equipped with air brakes. Otherwise, you will retain an “L” restriction on your CDL, which will make driving doubles and triples illegal.
You may also want to add endorsements like N (Tank Vehicles), H (Hazardous Materials), X (Tank + Hazmat), P (Passenger), and S (School Bus). We offer Delaware-specific practice tests for each. Each endorsement you add increases your overall marketability and job potential.
Whether you’re driving near Wilmington’s commercial hubs, hauling along I-95, or running loads between Delaware’s ports and surrounding states, a T Endorsement is a smart way to increase your opportunities. Use our Delaware CDL Doubles/Triples Practice Tests and our other endorsement and restriction-removal practice tests. Pass the official DMV exams, and advance your driving career today.
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.
