- Updated for January 2025
- Based on 2025 WY commercial driver's license manual
Free WY CDL Tanker Vehicles Practice Test 2025
As you explore career opportunities in Wyoming, you’ll find plenty of jobs in the oil and gas industry. It is one of the largest contributors to the state’s economy, and in the Powder River Basin, the demand for tanker drivers is quite high. Every day, tanker trucks transport crude oil, natural gas, and other petroleum products between refineries and distribution centers. Such dangerous cargo must be handled exclusively by professionals with an “X” endorsement on their Commercial Driver’s License (CDL).
This qualification represents the combination of the Tank Vehicles (N) endorsement (which allows you to drive vehicles designed to transport liquids or gases in a tank or tanks with an individual rated capacity of more than 119 gallons and a combined total capacity of 1,000 gallons or more) and the HazMat (H) endorsement (which allows you to transport hazardous materials that are toxic to humans or the environment).
Both of these endorsements are granted by the Wyoming Department of Transportation (DOT), after you pass their respective knowledge tests. We’ll help you with a series of Wyoming CDL Tank Vehicles Endorsement practice tests, but you can also check out our HazMat ones! Updated for January 2025, these practice tests are designed to help you master this subject and become a successful tanker driver.
You’ll need to answer 20 questions based on the official 2025 CDL manual (Wyoming CDL Handbook 2025). During your training sessions, you’ll notice a general overview of the test on the top-left side of the screen. This informational feature updates in real time and provides insight into your performance. You’ll know how many answers you’ve got right and how many more mistakes you can make before failing the test.
Pro tip: keep the CDL manual open in another tab while you are training with this intuitive tool. Once you reach a difficult question, simply search the manual for the correct answer. While this practice won’t be allowed during the official Tank Vehicles exam, it gives you an opportunity to develop a better understanding of the subject by reinforcing your knowledge through repetition and targeted review.
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual WY DOT exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- Side-to-side surge can cause
- How does liquid surge affect the handling of a tanker?
- Hauling liquids in tankers requires special care for which of the following reasons?
- How would you expect a truck with a cargo tank that has baffles to handle on the road?
- A smooth bore tank is also known as
- Empty trucks
- A tank endorsement is required for certain vehicles that transport
- 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.
- The liquid in a tank with baffles can still have what kind of surge?
- You should be very cautious when driving smooth bore tankers, especially when you are
- You should know the outage needed for the liquids you carry because
- When you load the small tanks of a cargo tank equipped with bulkheads, you should check the
- A baffled tanker is one with
- 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
- When your cargo tank has baffles, what handling effect do you expect?
- The movement of the liquid in partially filled tanks is called
- When should the driver of a tanker that has lost its brakes use a truck escape ramp?
- You are driving a tanker truck. The front wheels begin to skid. Which of these is most likely to occur?
- An emergency forces you to stop your tanker quickly or crash. You should
- Which of these statements about tankers are true?
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