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Want to pull doubles in Virginia? (The state does not allow triple trailers.) You must hold a Class A CDL and obtain a Double/Triple (T) endorsement on your CDL. Where legal and practical, doubles are often preferred (especially in the logistics sector) for their increased efficiency. The limited number of drivers with the T endorsement and their specialized training place them in high demand.
In Virginia, as in much of the rest of the nation, the logistics and retail sectors make heavy use of multiple trailers for efficient transport (although other sectors often use doubles, too). Double-trailer trucks transport containers from the Port of Virginia to distribution centers inland. Railroads like CSX and Norfolk Southern offer intermodal operations, using double trailers to haul goods to or from rail. Walmart uses double trailers to supply stores from its distribution centers. Amazon Fulfillment Centers use double trailers for parcel distribution.
To obtain the Double/Triple Endorsement on your CDL, you must pass the official Double/Triple knowledge test. Topics covered on the test include safe handling, air brakes on doubles and triples, coupling and uncoupling, emergency situations, pre-trip inspections, rollovers, and trailer sway. (No special skills test is required for this endorsement.)
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
This knowledge test is based on the official Virginia CDL manual (Virginia CDL Handbook 2026), especially Chapter 7: Doubles and Triples. Have you had any trouble absorbing or memorizing the information in this manual? We can help ensure you pass the Double/Triple knowledge test on your first try.
This Virginia Doubles and Triples Endorsement Practice Test, the first of five we offer, is based on the official CDL manual, just like the official Double/Triple knowledge test. It’s up to date as of January 2026. The 20 multiple-choice questions and answers on this practice test deal with air lines, converter dollies, coupling, emergency situations, following distance, and rearward amplification.
Our AI Assistant can help you figure out the answer to any practice question. You can ask it to rephrase the question or give you a hint. You can also ask your own questions about commercial driving. If you still miss the question, the AI Assistant will immediately give you the correct answer and an explanation.
This practice test isn’t timed; take all the time you need to learn and master the material covered by this practice test. Disappointed with your final score? You can retake this practice test as often as you wish. The order of the questions will be randomized.
Be sure to try our other four Virginia Doubles and Triples Endorsement Practice Tests too!
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.
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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 VA 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.
