- Updated for January 2025
- Based on 2025 OK commercial driver's license manual
Free OK CDL Tanker Vehicles Practice Test 2025
Test your knowledge of tankers with our Oklahoma CDL Tank Vehicles endorsement practice tests. This tool has been designed to help you familiarize yourself with the questions you’ll encounter at the SOK location. Each practice test consists of 20 questions based on the Tank Vehicles section of the official 2025 CDL manual (Oklahoma CDL Handbook 2025). With unlimited attempts, you can train as often as you want, being limited only by your own schedule. To maximize results, we recommend creating a daily routine consisting of multiple training sessions.
It is easier to retain important information with repetition. Consistency is always preferred over intensity, and becoming a tanker driver in Oklahoma is a long but rewarding journey. Arm yourself with a lot of patience and take small steps towards achieving your career goals. One day, you’ll pull up at the Oklahoma City Terminal in an empty tanker, waiting to be loaded with 7,000 gallons of fuel. During this time, you might want to mentally recall the various aspects of tanker driving, which you have successfully memorized in your learning phase.
Liquid surge can cause a shift in weight due to the movement of liquid inside the tank. You must drive smoothly and reduce speed ahead of sharp turns. During winter months, ice can pose a major challenge even for the most experienced commercial drivers. Stopping distance, which is already long in a tanker truck, can increase exponentially if the road is slippery. That’s why it is crucial to master the controls of your vehicle before you venture out into the Sooner State, especially if your tanker is loaded with hazardous materials. Because such cargo can be dangerous to humans and the environment, you’ll need a HazMat (H) endorsement to qualify for such jobs. Your CDL will include the combined HazMat and Tank Vehicle (X) endorsement.
As you train with our practice tests, remember your final goal: becoming a professional tanker driver who successfully handles the responsibility of transporting liquid or gaseous cargo. The Tank Vehicles endorsement knowledge test is just a piece of the puzzle. Passing it with a score of 80% or above completes the bigger picture, which sees you behind the wheel of an actual tanker, enjoying a fulfilling and rewarding career.
gp
- 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 OK SOK 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?
- Alabama: Test 1 / Test 2
- Alaska: Test 1 / Test 2
- Arizona: Test 1 / Test 2
- Arkansas: Test 1 / Test 2
- California: Test 1 / Test 2
- Colorado: Test 1 / Test 2
- Connecticut: Test 1 / Test 2
- Delaware: Test 1 / Test 2
- District of Columbia: Test 1 / Test 2
- Florida: Test 1 / Test 2
- Georgia: Test 1 / Test 2
- Hawaii: Test 1 / Test 2
- Idaho: Test 1 / Test 2
- Illinois: Test 1 / Test 2
- Indiana: Test 1 / Test 2
- Iowa: Test 1 / Test 2
- Kansas: Test 1 / Test 2
- Kentucky: Test 1 / Test 2
- Louisiana: Test 1 / Test 2
- Maine: Test 1 / Test 2
- Maryland: Test 1 / Test 2
- Massachusetts: Test 1 / Test 2
- Michigan: Test 1 / Test 2
- Minnesota: Test 1 / Test 2
- Mississippi: Test 1 / Test 2
- Missouri: Test 1 / Test 2
- Montana: Test 1 / Test 2
- Nebraska: Test 1 / Test 2
- Nevada: Test 1 / Test 2
- New Hampshire: Test 1 / Test 2
- New Jersey: Test 1 / Test 2
- New Mexico: Test 1 / Test 2
- New York: Test 1 / Test 2
- North Carolina: Test 1 / Test 2
- North Dakota: Test 1 / Test 2
- Ohio: Test 1 / Test 2
- Oklahoma: Test 1 / Test 2
- Oregon: Test 1 / Test 2
- Pennsylvania: Test 1 / Test 2
- Rhode Island: Test 1 / Test 2
- South Carolina: Test 1 / Test 2
- South Dakota: Test 1 / Test 2
- Tennessee: Test 1 / Test 2
- Texas: Test 1 / Test 2
- Utah: Test 1 / Test 2
- Vermont: Test 1 / Test 2
- Virginia: Test 1 / Test 2
- Washington: Test 1 / Test 2
- West Virginia: Test 1 / Test 2
- Wisconsin: Test 1 / Test 2
- Wyoming: Test 1 / Test 2
Your go-to, trusted source
Experience the Driving-Tests differenceOur commitment to accuracy and quality in our practice tests
Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.
At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.
Here's an inside look at how we maintain the highest quality in our practice tests.
Content Creation and Verification Process
- Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information. - Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation. - Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy. - Rigorous Review Process:
Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors. - User Feedback Mechanism:
After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly. - Responsive Updates:
In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.
Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.
Get your ELDT certificate and pass CDL exams the first time. Guaranteed.
Get full access to our 3-in-1 program, starting at $79. CDL schools charge $3,000-$4,000 for that.
All 1,500 OK exam-like questions
Pass Guarantee: pass your permit exam, or get your money back
ELDT certification included
Official FMCSA-approved provider, instant completion reporting
Industry-leading 99.06% success rate
Compare with the average US passing rate of 49%
Trusted by over 1.15 Million customers
The only program recommended by DMVs
