1
2
3
4
5
All tests
/
 
 
 
 
 
Advertisement

MA CDL Double/Triple Trailers Practice Test 2 2025

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Based on 2025 MA commercial driver's license manual
  • Triple-checked for accuracy
  • Updated for September 2025

Already have your Massachusetts Class A CDL? Great! Now you’re just one endorsement away from more specialized (and higher-paying) driving opportunities. The Doubles/Triples (T) Endorsement is the name of the game. With it, you can legally operate double-trailer combinations on Massachusetts roads and beyond.

To earn it, you’ll need to pass the Massachusetts CDL Double and Triple Trailers (T) Endorsement Knowledge Test. This can be quite a challenge, as it includes 20 multiple-choice questions, 16 (80%) of which must be answered correctly to pass. If you don’t pass, the Massachusetts RMV requires you to wait at least one business day before retesting. After three failed attempts, a retesting fee will apply – and nobody wants that!

That’s why our Free Massachusetts CDL Double and Triple Trailers (T) Endorsement Knowledge Practice Tests are built to help you succeed the first time. These tests mirror the official format used by the Massachusetts RMV and include real-time feedback, hints, and AI-powered learning tools, everything you’ll need to pass!

All practice questions are based on the latest Massachusetts CDL Manual. You’ll learn all about coupling and uncoupling of trailers, techniques to prevent rollovers and jackknifing, safe braking procedures for long combination vehicles, proper following distances, and inspection procedures. These topics are all commonly found on the official test.

With major roadways like the Mass Pike (I‑90), I‑93, and I‑495, and freight activity surrounding hubs in Boston, Worcester, and Springfield, the need for CDL drivers with the T certification is strong. Employers like FedEx Freight, Old Dominion, and XPO Logistics regularly seek T-endorsed drivers and pay a premium to get them!

Want even more career flexibility? Consider earning additional endorsements, such as N (Tank Vehicle), H (Hazardous Materials), X (Combination of Tank & Hazmat), P (Passenger), and S (School Bus). Each endorsement expands the types of vehicles and cargo you’re authorized to transport. This results in a substantial boost in your marketability!

Most double and triple trailer combinations use air brakes. To legally operate these without restriction, you must also pass the Air Brakes Knowledge Test and a skills test in a vehicle with air brakes. If you don’t, your CDL will carry an L or Z restriction prohibiting you from operating full air brake systems. Our site offers dedicated Massachusetts Air Brakes Practice Tests to help you eliminate that restriction.

Be sure to explore our complete set of state-specific practice tests designed to help you pass all your knowledge exams on your first attempt.

MA commercial driver's license
  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Triple-checked for accuracy

About this test

5 out of 5 • 1 votes
5 min to complete
Available in EN and ES
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

What to expect on the actual MA RMV exam

20

questions

16

correct answers to pass

80%

passing score

Are you in another state?

Your go-to, trusted source

Experience the Driving-Tests difference
Since our foundation in 2010, Driving-Tests.org has led the way in online driver's education, with over a decade of experience. Our dedicated experts, bringing together more than 50 years of collective expertise, have established us as the largest non-governmental organization in the U.S. solely focused on driver education. We go beyond the official manuals, offering unique interactive experiences and support like audio guides and an AI Assistant, to cater to different learning styles and needs.
Helping hundreds of thousands to ace their tests, our resources have earned a 4.7-star rating from over 14,500 reviews. Our goal is to make your path to becoming a confident driver as straightforward and effective as possible.
5/5
1 votes
Click a star to add your vote
Ask AI Coach
Hi there! I'm Officer Frank