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.
View All PlansAdding difficult questions to Challenge Bank™ is an exclusive Premium feature. Unlock access to 650+ exam-like questions, a Pass Guarantee, personalized study plans, and more.
View All Plans| 90-100 | => | 41% |
| 80-89 | => | 33% |
| 70-79 | => | 11% |
| 60-69 | => | 4% |
| <60% | => | 11% |
Want to pull doubles in Massachusetts? (Massachusetts does not allow triple trailers.) You must hold a Class A CDL and obtain a Double/Triple (T) endorsement on your CDL. The limited number of drivers with this endorsement and their specialized skills and additional responsibilities place them in high demand.
In Massachusetts, as in much of the rest of the nation, the logistics and retail sectors make heavy use of double trailers for efficient transport. In intermodal shipping, double-trailer trucks transport containers and bulk goods between the state’s seaports, rail hubs, and distribution centers. Less-Than-Truckload (LTL) carriers, such as XPO Logistics, use doubles to transport cargo between warehouses and distribution hubs. Wholesale and retail distributors, such as BJ’s Wholesale Club Distribution Center and Stop & Shop Distribution Center, use double trailers to transport goods between warehouses and retail locations.
In Massachusetts, however, double-trailer trucks are heavily restricted in metropolitan areas, especially Boston. For example, when driving eastward toward Boston, you may only use I-90 from the New York state line to the I-95 interchange in Weston. You may not use any of the Boston tunnels.
M.S., Chief Educational Researcher (ACES member)
Last verified for accuracy on
To obtain the Double/Triple endorsement on your CDL, you must pass the Double/Triple knowledge test. This test covers such topics as safe handling, air brakes on doubles and triples, coupling and uncoupling, emergency situations, pre-trip inspections, and state and federal regulations on doubles and triples. (No special skills test is required for this endorsement.)
This knowledge test is based on the official Massachusetts CDL manual (Massachusetts CDL Handbook 2025), especially Chapter 7: Doubles and Triples. We can help ensure you’ll pass the knowledge test on your first try – something you can’t ensure just by reading the manual.
This Massachusetts 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 December 2025. The 20 multiple-choice practice 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 give you a hint or further elaboration if you get stuck on a question or an immediate explanation of the correct answer if you still miss the question. You can also ask it your own questions about driving.
This practice test isn’t timed; take all the time you want. Disappointed with your final score? You can retake this practice test as often as you wish. Each time, the order of the questions will be randomized.
Driver’s Ed is - nobody wants to set foot inside the RMV. 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 MA 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 RMV.
