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Based on official Washington exam questions

WA CDL Double/Triple Trailers Practice Test 3 2025

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements.

Adding a “T” endorsement to your Washington DOL commercial driver’s license (CDL) is a stress-free process using our practice test series. Our third free Washington DOL CDL Double/Triple Trailers endorsement practice test provides you with expert direction in overcoming your learning obstacles. You shouldn’t rest your hopes on a sunny day along the Olympic Peninsula, and the same thing can be said of learning with traditional study methods. The practice test teaches you how to tow multiple trailers using authoritative information. You won’t be overwhelmed by highly technical language that adds to your confusion. Instead, the practice test offers a supportive and encouraging study method to prepare you for success. You will rapidly learn the essential information you must know to expand your driving opportunities and increase your earnings.

Offering the most innovative training method, our Washington DOL CDL Double/Triple Trailers endorsement practice test helps you figure out your most significant learning challenges. The practice test uses 20 questions, similar to those on the required official knowledge test, to determine the information you must better understand. Using the results, you can direct your attention to learning this critical information. This approach will thoroughly prepare you to correctly answer at least 80% of the 20 questions on the official knowledge test required to earn a passing score.

Helping you develop the most complete set of driving skills, this Washington DOL Double/Triple Trailers endorsement practice test contains reliable information to support its effectiveness and accuracy. If you submit an incorrect answer, the practice test will provide a detailed explanation of the correct one in easily understood language. You can trust this information because it is taken directly from the most recent Washington DOL CDL manual (Washington CDL Handbook 2025) and is up to date as of November 2025. The information provided supports the basic principles of Entry-Level Driver’s Training (ELDT) that constitute the foundation of your professional driving skills. You will be able to successfully apply the information learned to various driving scenarios and increase your chances of passing the official knowledge test on your first attempt.

Smelling the “Aroma of Tacoma” is not a pleasant experience, but you can sniff out delightful professional driving skills with the practice tests at https://driving-tests.org/washington/wa-cdl-practice-test/.

5 min to complete
Available in EN and ES
WA commercial driver's license
Real exam-style pitfalls you’ll practice:
Common Traps
Distractors
Trick Wording
Double Negatives

Authored and curated by Steven Litvintchouk, M.S.

Chief Educational Researcher (ACES member)
Methodology & Editorial Policy
Last verified for accuracy: November 2025 (reviewed weekly)

What to expect on the actual WA permit test

20

questions

16

correct answers to pass

80%

passing score

We know what it takes to pass. And we’ve got the proof.

Driver’s Ed is - nobody wants to set foot inside the DOL. That’s why millions of learners trust us for simple, visual, effective prep.

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A Smarter Way to Study

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Interactive Handbook

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