Free AZ CDL Double/Triple Trailers Practice Test 2025

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

If you’re in the market for the Doubles/Triples Trailers endorsement on your ArizonaCDL, you’re likely already aware that the key requirement is passing a 20-question multiple-choice knowledge test. The test requires a score of 80% (or 16 correct answers) to pass. Once you’ve achieved this certification, you receive a “T” endorsement on your CDL, which authorizes you to pull two or three trailers (where such laws allow) and operate combination vehicles that require this added skill and knowledge.

You may be saying to yourself, “That sounds great! But how can I best prepare for this test?”
You will find no shortage of online resources, but too much information can be incredibly overwhelming. What you need is a systematic and focused approach. That’s where our free Arizona CDL Double/Triple Trailers practice test comes in. It is up to date as of March 2025 and includes 20 multiple-choice questions that resemble what you will face at the MVD on your actual test day!

Additionally, as you take our online practice test, you will receive immediate and detailed feedback on your answers. If you get a question wrong, you are immediately shown exactly why a different response is better. This helps solidify the content in your mind as you progress through the practice session, instead of bombarding you with the entire assessment at the end.

The good news is that the state of Arizona only requires the passing of this knowledge test in order to add the “T” endorsement to your already existing Class A or Class B CDL. There are no additional skills or road tests necessary. Once you have prepared, passed our free practice tests, and feel ready to go, you simply apply at the MVD, provide the required documentation, and pay the required fee prior to taking the official test.

Looking for other Arizona-based CDL endorsements? Find tons of valuable information and practice tests here.
Interested in CDL endorsements for another state? We have you covered there as well! Visit this link and click CDL to select your choice of state.

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What to expect on the actual AZ MVD exam

questions

correct answers to pass

80%

passing score

Helpful links

AZ DMV website

Official Arizona CDL manual (2025)

More AZ MVD Written Exam Resources

AZ CDL Double/Triple Trailers Test (you are here)

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Our commitment to accuracy and quality in our practice tests

Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.

Written by Andrei Zakhareuski Updated over a week ago

At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.

Here's an inside look at how we maintain the highest quality in our practice tests.

Content Creation and Verification Process

Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information.
Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation.
Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
Rigorous Review Process:
Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors.
User Feedback Mechanism:
After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly.
Responsive Updates:
In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.

Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.

FREE AZ CDL Double/Triple Trailers Practice Test

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