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Tank Endorsement Test | Wisconsin 2026 #1 Page 2 of 3
Train for FREE with our Wisconsin tank endorsement practice test online. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a WI tank license in 2026, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that DMV requirements for issuing a CDL tank vehicle endorsement may vary from state to state.
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8 . If you must make a quick stop while transporting liquids, it may be a good idea to use the:
A tank vehicle transporting liquids is less stable than other vehicles and may be prone to roll over or skid if not operated in a safe manner. If you must make a quick stop to avoid an accident while transporting liquid cargo, it may be a good idea to use the controlled braking method.
9 . Vehicles equipped with Anti-Lock Braking Systems (ABS) have ____ malfunction lamps to indicate when the ABS is not working.
Vehicles with ABS have yellow malfunction lamps to alert drivers when the braking systems are not working. Be sure you know where the malfunction lamp on your vehicle is before beginning a trip.
10 . As part of a pre-trip inspection, you should look for all of the following, except:
When inspecting your tires, verify that there is tread depth of at least 4/32 of an inch in every major groove on the front tires and tread depth of at least 2/32 of an inch in grooves on the other tires. Be sure that your tires are not too worn, are not cracked, have proper air pressure, and are all equally sized.
11 . What kind of brakes do most newer heavy-duty trucks use?
Most newer heavy-duty vehicles use dual air brake systems. A dual air brake system has two separate air brake systems which use a single set of brake controls.
12 . Brake linings should be:
Brake linings should not be loose or soaked with oil or grease. They shouldn't be dangerously thin.
13 . Pushing in the trailer air supply control will:
Push in the trailer air supply control to supply the trailer with air. Pull out the trailer air supply control to turn off the air supply and activate the emergency brakes.
14 . Push in the trailer air supply control to:
Supply the trailer with air.
Push in the trailer air supply control to supply the trailer with air. Pull out the trailer air supply control to turn off the air supply and activate the emergency brakes.
2026 Wisconsin | Frequently Asked Questions
A CDL Class B license in Wisconsin allows the holder to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not exceeding 10,000 pounds. This typically includes buses, dump trucks, delivery trucks, and other similar vehicles. It does not cover operation of Class A vehicles.
A Class B CDL (Commercial Driver's License) in Wisconsin allows you to operate single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not exceeding 10,000 pounds. This typically includes buses, dump trucks, tow trucks, delivery trucks, and straight trucks.
To acquire a Class B CDL license in Wisconsin, you must be at least 18 years old (21 for interstate driving), possess a valid Wisconsin driver's license, pass a vision test, and successfully complete a knowledge test. You'll also need to pass a skills test in the type of vehicle you plan to drive. Medical clearance may also be required.
In Wisconsin, you must be at least 18 years old to qualify for a Class B CDL license. However, to drive a commercial vehicle across state lines (interstate driving) or to transport hazardous materials, you must be at least 21 years old.
Yes, specific endorsements may be necessary for a Class B CDL license depending on the type of vehicle you plan to drive or the cargo you will carry. These can include passenger, school bus, tanker, or hazardous materials endorsements. Each endorsement requires passing additional knowledge and/or skills tests.
The Class B CDL skills assessment in Wisconsin includes three parts: the pre-trip vehicle inspection, basic vehicle control, and on-road driving. You will be tested on your ability to inspect your vehicle, control the vehicle at low and high speeds, and navigate through traffic and intersections safely.
Yes, Class B CDL license holders in Wisconsin are restricted to operating vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 26,000 pounds, or towing vehicles not more than 10,000 pounds. They cannot operate Class A vehicles unless they have the appropriate endorsements. They are also subject to federal driving regulations.
Yes, in Wisconsin, the written Class B CDL test is available in English and Spanish. However, the Federal Motor Carrier Safety Administration requires that all CDL holders understand and read English well enough to converse with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.
Yes, you can request accommodations for the Class B CDL written exam in Wisconsin if you have a disability. The Wisconsin Department of Transportation provides reasonable testing accommodations under the Americans with Disabilities Act. You'll need to provide documentation of your disability and specify the type of accommodation you need when scheduling your exam.
Yes, you can retake the Class B CDL written test in Wisconsin if you fail on your first attempt. You're allowed to retake the test the next day. However, if you fail three times, you will need to wait until your eligibility is renewed, which is typically a period of 6 months, before you can try again.