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Free WI CDL Tanker Vehicles Practice Test 2025

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

Did you know that Wisconsin is one of the leading producers of cheese and milk in the United States? Producing about 25% of the nation’s cheese, the Badger State hosts an annual cheese festival to celebrate its rich dairy heritage. This industry creates plenty of opportunities for those seeking employment in Wisconsin. Commercial drivers with a Tank Vehicles (N) endorsement on their Commercial Driver’s License (CDL) can transport thousands of gallons of milk from dairy farms to distribution centers in major cities like Milwaukee, Madison, and Green Bay.

Driving a tanker vehicle is quite different from driving a standard truck. Liquid surge greatly affects the stability of a tanker and increases the stopping distance. During winter months, stopping at a red light could be a challenge you wouldn’t expect in a sedan, SUV or box truck. As an experienced tanker driver, you’ll know how to manage this phenomenon and how to safely control your tanker, even on black ice. You will begin by studying the official 2025 CDL manual (Wisconsin CDL Handbook 2025), which is what the 20 questions on the Tank Vehicles knowledge test are based on.

We live in a digital age where extensive knowledge of any known subject is available on demand. However, an abundance of information can be overwhelming. What you need in your learning journey is a systematic approach paired with consistency and perseverance. As you study the various aspects of tankers in detail, use our Wisconsin CDL Tanker Vehicles practice tests to evaluate your knowledge. Each Wisconsin CDL Tanker Vehicles Endorsement practice test has been designed to closely resemble the official knowledge exam, with 20 questions based on the CDL manual.

To pass, you’ll need to score at least 80%. There are multiple answer choices for each question, but only one is correct. With unlimited attempts and direct access on any device supporting internet browsers, there’s no limit to how much you can train with this intuitive tool. By pressing the “Shift + ?” combination on your keyboard, you can display a list of keyboard shortcuts. With this feature, you can go through each question even if your wireless mouse’s battery charge runs out. If you wish to start from the beginning, you can always use the restart button to begin a new session.

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WI commercial driver's license
  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Triple-checked for accuracy

What you need to know

4.53 out of 5 • 19 votes
6 min to complete
Available in EN and ES
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

What to expect on the actual WI DMV exam

20

questions

16

correct answers to pass

80%

passing score

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List of questions (classic view)

  1. Side-to-side surge can cause
  2. How does liquid surge affect the handling of a tanker?
  3. Hauling liquids in tankers requires special care for which of the following reasons?
  4. How would you expect a truck with a cargo tank that has baffles to handle on the road?
  5. A smooth bore tank is also known as
  6. Empty trucks
  7. A tank endorsement is required for certain vehicles that transport
  8. The best way to take a curve in a tanker is to slow to a safe speed before entering the curve and then _________ as you go through it.
  9. The liquid in a tank with baffles can still have what kind of surge?
  10. You should be very cautious when driving smooth bore tankers, especially when you are
  11. You should know the outage needed for the liquids you carry because
  12. When you load the small tanks of a cargo tank equipped with bulkheads, you should check the
  13. A baffled tanker is one with
  14. You are driving on a clear night. You must dim your headlights from high to low. You should adjust your speed so you can stop within
  15. When your cargo tank has baffles, what handling effect do you expect?
  16. The movement of the liquid in partially filled tanks is called
  17. When should the driver of a tanker that has lost its brakes use a truck escape ramp?
  18. You are driving a tanker truck. The front wheels begin to skid. Which of these is most likely to occur?
  19. An emergency forces you to stop your tanker quickly or crash. You should
  20. Which of these statements about tankers are true?
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