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Thinking of leveling up your Class A CDL in New Jersey? Ready to expand your qualifications and earnings potential? You’re just one endorsement away! Adding the Doubles/Triples (T) Endorsement to your license allows you to legally haul double and triple trailers, opening doors to higher-paying jobs and specialized freight routes.
You must pass the New Jersey Doubles and Triples Knowledge Test to earn this endorsement. The test consists of 20 multiple-choice questions, at least 16 of which must be correctly answered (80%) to pass. If you don’t pass, the New JerseyMVC requires a one-business-day waiting period before retesting. After three failed attempts, additional fees may apply.
Our free New Jersey CDL Doubles and Triples Trailers (T) Practice Tests are engineered to mirror the official MVC test format. They provide real-time feedback, hints, and AI-powered tools to boost your understanding faster than studying the manual alone and even faster than with any of the traditional study guides you might find online.
All test material is based on Section 7 of the official New Jersey CDL Manual, including coupling and uncoupling of double and triple trailers, preventing rollovers, jackknifing, and the “crack-the-whip” effect. Also covered are proper following distances, braking techniques, and inspecting trailer connections and braking systems.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
Once you’ve passed the test and received your T Endorsement, you’ll be eligible for more competitive jobs across New Jersey’s extensive highway system, including I‑95 (New Jersey Turnpike), I‑80, I‑78, I‑287, I‑295, and Route 1. These major roadways support regional hubs like Newark, Elizabeth, Camden, and Jersey City, where double-certified drivers are in high demand. Major organizations such as Old Dominion, FedEx Ground, and XPO Logistics frequently hire drivers with this endorsement in the Garden State.
Most double/triple trailer combinations use air brakes. To avoid the “L” restriction, you’ll also need to pass the Air Brakes Knowledge Test. We offer practice tests and other prep tools designed for first-time testing success for air brakes and other endorsements, such as N (Tank Vehicles), H (Hazardous Materials), X (Hazmat + Tank Combo), P (Passenger Vehicles), and S (School Bus).
This practice test is Practice Test Two in our New Jersey CDL Doubles and Triples Trailers series. Be sure to complete Practice Test One and check out our full library of New Jersey-specific practice exams to ensure you’re ready to pass on your first try.
Driver’s Ed is - nobody wants to set foot inside the MVC. 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 2025 NJ 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 MVC.
