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.
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| 80-89 | => | 33% |
| 70-79 | => | 0% |
| 60-69 | => | 33% |
| <60% | => | 33% |
Whether you’re hauling along I‑10 through Baton Rouge and Lafayette or navigating I‑20 through Shreveport and Monroe, take your commercial driving career to the next level in Louisiana by earning the Doubles/Triples (T) Endorsement. It’s a smart move for Louisiana-based drivers aiming to boost their job prospects and income. It opens doors to higher-paying jobs with major carriers like Old Dominion, XPO Logistics, and FedEx Freight.
To legally operate double or triple trailers in Louisiana, you’ll need to pass the Louisiana Double/Triple Trailers (T) Endorsement Knowledge Test, which is based on Section 7 of the Louisiana Commercial Driver License Manual. This test is administered by the Louisiana OMV and includes 20 multiple-choice questions. You must answer at least 16 correctly (80%) to pass. Failing the exam results in a minimum one-business-day waiting period before retesting, and additional fees apply after three failed attempts.
With only four incorrect answers allowed, there’s not a lot of margin for error. That’s where our Louisiana-specific Doubles/Triples Endorsement Practice Tests come in! Our team of experts has designed these practice tests to mirror the official exam format. You’ll also be provided with special learning-enhancement features that include real-time feedback, helpful hints, and AI-driven training tools. These added features have been scientifically proven to speed the learning process and increase retention. These features are far more effective than traditional study guides.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
The practice test covers coupling and uncoupling trailers, preventing rollovers and jackknifing, the “crack-the-whip” effect, inspection procedures for multiple trailers, and braking distance and following safety for combination vehicles. These topics regularly appear on the official exam.
You must also pass the Air Brakes Knowledge Test and pass your skills test in a vehicle equipped with air brakes. Otherwise, your CDL will include an “L” restriction, prohibiting you from operating air brake-equipped vehicles, which means you’ll be unable to legally drive doubles and triples.
We also recommend you further diversify your driving credentials with additional endorsements, and we’ve got you covered there as well! Our platform offers free Louisiana CDL Practice Tests for N (Tank Vehicles), H (Hazardous Materials), X (Combo Tank and Hazmat), P (Passenger), and S (School Bus) endorsements.
With a Louisiana T Endorsement in hand, you’re not just a driver, you’re one of the top-tier professionals in this industry. Start preparing today!
Driver’s Ed is - nobody wants to set foot inside the OMV. 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 LA 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 OMV.
