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Original questions based on the latest WashingtonWA CDL Handbook Expert-reviewed by S. Litvintchouk, M.S. (MIT), Chief Educational Researcher

WA CDL Tanker Vehicles Practice Test 3 2026

Avg. pass rate on our WA tests: 66%.
Average pass rate for this test: 91%.
Easy
5 min
Score distribution:
90-100=>20%
80-89=>20%
70-79=>0%
60-69=>60%
<60%=>0%
Avg. first-try score: 65%
Perfect for:
First-time and renewal CDL/CLP applicants

Our Washington Commercial Driver’s License (CDL) Tanker Vehicle practice test series provides comprehensive training to expand your driving opportunities. This third CDL Tanker Vehicle practice test will help you attain the required skills to drive a tanker vehicle by creating a personalized study plan. You’ll be encouraged by the remarkable results produced by the practice test, compared with those from other on-line resources. 12 Washington residents are currently finding the practice test worthy of the acclaim afforded to some of the finest wines of Woodinville. With its strategic approach, the practice test is in a class by itself.

By making an initial assessment of your proficiency, our CDL Tanker Vehicle practice test can help you design a study plan to eliminate your most significant misunderstandings. You must pass an official knowledge test to add a tanker endorsement to your CDL. The practice test mimics the official knowledge test to give you a sense of the actual testing experience and identify your most urgent areas for improvement. The official knowledge test requires you to correctly answer at least 80% of its 20 questions to pass. Based on your test results, you will determine the critical information that must be better understood to achieve a passing score.

This CDL Tanker Vehicle practice test not only highlights your specific knowledge gaps, but it also provides convenient access to the information to fill them. It won’t take long for you to notice a remarkable difference in your ability to better understand complex information. The practice test possesses an interactive capability that evaluates your answers. If you get a question wrong, the practice test immediately responds with a detailed explanation of the information required to correct your answer. You can fully trust the information provided because it is taken directly from the most recent Washington DOL CDL manual (Washington CDL Handbook 2026). The CDL manual is the most accurate and authoritative source on commercial driving rules and regulations. By giving you the opportunity to analyze and apply its teachings to various driving scenarios, the practice test helps you absorb the lessons being taught. The practice test is the most time-efficient study method for increasing your driving skills.

4,104 practice tests have been completed by Washington users who chose not to settle for other on-line resources that provide inferior training. The practice test is unmatched in its ability to enhance your driving skills and improve your chances of passing the official knowledge test on your first try.

The “Grey’s Anatomy” TV series took its name from a human anatomy textbook, and you can derive professional driving skills from the practice tests at https://driving-tests.org/washington/wa-cdl-practice-test/.

WA CDL Tanker Vehicles Practice Test 3 2026
WA commercial driver's license
Last verified:
12 WA students practicing right now 12 WA students online now
318 tests completed today statewide

Reviewed for legal and handbook accuracy

Steven Litvintchouk

M.S. (MIT, Columbia), Chief Educational Researcher. ACES member (Society for Editing). Verifies all 50 state tests against official handbooks weekly.

Test design and learning experience oversight

Andrei Zakhareuski

Co-founder & CEO, Driving-Tests.org

Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the Washington DOL changes its handbook or website information. Official sources we check: 

Real users who passed the exam first try

Verified student reviews • Shared with permission

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