The "T" endorsement authorizes you to operate Longer Combination Vehicles (LCVs), which are combination vehicles consisting of a tractor and two or three trailers. This job requires precision and carries greater responsibility, and that’s why LCV drivers often take home higher pay. Once added to your Class A CDL, this endorsement stays on your license permanently. In Alaska, pulling triples is only allowed on select designated routes and possibly only at certain times of the year. However, major carriers like FedEx and UPS primarily use doubles. They seek commercial drivers qualified to drive LCVs, so it’s a good idea to add the "T" endorsement to your CDL.
The official Doubles and Triples Knowledge Exam includes multiple-choice questions. After you pay the endorsement fee, you’ll take this exam at a DMV office. Scoring 80% or higher will grant you the "T" endorsement, giving you access to additional driving jobs and career paths.
We recommend reading Section 7 (Doubles and Triples) of the official Commercial Driver License Manual (Alaska CDL Handbook 2026) multiple times. To achieve a passing score on your first attempt, use our Alaska CDL Double/Triple Trailers Practice Tests regularly throughout your learning phase.
Now you’re about to take the fourth practice test in this series. This intuitive tool offers a systematic approach, which is much more effective than traditional study methods. More and more Alaska students are making our practice tests part of their study routine, and 6 of them are practicing at this very moment. Some prefer to study late at night, others first thing in the morning. Either way, this practice test is available 24/7. It adds flexibility to your learning process and lets you study on your own schedule. If you haven’t yet obtained your CDL, you can use our Free Alaska CDL Permit Practice Test to prepare for the official General Knowledge Exam.
Your dream career is within reach, and in Alaska, there are plenty of opportunities for commercial drivers. Take the first step today and use our practice tests to build a strong foundation for your driving skills.