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0 (4mistakes allowed to pass)
MO CDL Tanker Vehicles Practice Test 2 2026
Avg. pass rate on our MO tests: 57%.
Average pass rate for this test: 59%.
Moderate
6 min
85% fail this test first try • Better here than at DOR
Score distribution:
90-100
=>
22%
80-89
=>
33%
70-79
=>
33%
60-69
=>
0%
<60%
=>
11%
Avg. first-try score: 85%
Welcome to our second Missouri CDL Tanker Vehicles Practice Test, the solution to your study needs! Whether you’re looking to add another endorsement to your CDL or you’re just beginning a career as a tanker driver, this intuitive tool can help you study efficiently. It closely reflects the content and format of the official Tank Vehicles knowledge exam, which you must pass to obtain the Tank Vehicles (N) endorsement.
You must answer all questions and score 80% or higher to pass. Each question has multiple answer choices, but only one is correct. You can open the official Commercial Driver License Manual (Missouri CDL Handbook 2026) in another window while you train with this practice test. Look for the correct answers in Section 8 (Tank Vehicles), which describes this subject in detail. Additionally, you can strengthen your knowledge with the detailed explanation provided for each question.
This practice test is available in multiple languages. Select yours from the test settings menu located in the top-right corner of the page. This menu offers several options, such as answer popularity, voice-over, and a slider to adjust the font size. Questions you miss will be automatically added to your personal Challenge Bank™. Visit this section to identify areas that need improvement and learn from your mistakes. Please keep in mind that questions will remain in your Challenge Bank until you answer them correctly. With Premium, you can add any question you want so that you can practice with it later.
Original questions by our teamBased on 2026 MO CDL Handbook
Questions are created and maintained by the Driving-Tests.org content team following our multi-layer editorial process and updated whenever the MissouriDOR changes its handbook or website information. Official sources we check:
If you are stuck on a difficult question but don’t want to skip it, you can request a hint from your personal AI coach. Nicknamed “Officer Frank,” this automated assistant can provide helpful insight to further boost your learning potential. Do not hesitate to ask for his help during your training sessions!
It takes several weeks to fully master a new subject. When it comes to general commercial driving theory, it’s crucial to understand every topic. Our Free Missouri CDL Permit Practice Test can help you become a safe and responsible commercial driver. Use it throughout your learning phase and watch your knowledge naturally improve over time.
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A smarter way to study
Challenge Bank™
Our trademarked system automatically saves questions you miss, creating personalized tests that target your weak spots until you’ve mastered the material.
AI-powered feedback
Get smarter as you study. Our new AI-powered feedback provides detailed, question-level insights to help you understand the why behind each answer.
Interactive handbook
Go beyond the boring black-and-white manual. Our interactive handbook lets you read, listen with an MP3 audio version, or even chat with it to find the information you need, faster.
Sources & methodology
We build our practice questions from the current 2026 MO Driver Handbook and refine them using patterns recent test‑takers report.
What we use
Driver handbook • Knowledge‑test/permit overview • Fees & ID requirements • Office/appointment info
How we make exam‑like questions
We mirror recurring themes (e.g., right‑of‑way traps, sign look‑alikes) and use similar distractors and wording styles.
What we don’t do
We don’t collect or publish actual test items and we’re not affiliated with DOR.