Knowledge Test Class B #1

Class B Driving Test | Wisconsin 2025 #1

Train for FREE online with our Wisconsin class B license test. 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 CDL class B permit in 2025, practice as much as..

Train for FREE online with our Wisconsin class B license test. 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 CDL class B permit in 2025, 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 CDL class B requirements may vary from state to state.

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1 . When stopping in an emergency situation, you should:

If you need to make an emergency stop, you can use either the controlled braking method or the stab braking method. It's important to brake in a way that keeps your vehicle in a straight line but will still allow you to turn if necessary.

2 . In general, the length limit for a single vehicle and load is:

60 feet. Under Wisconsin law, the length of a single vehicle and its load is limited to 40 feet.

3 . When you press the brake pedal in a vehicle with S-cam brakes, air pressure pushes out the rod and moves the:

Alcohol evaporator. When pressing the brake pedal in a vehicle with S-cam brakes, air will enter the brake chambers. The added air pressure will push out the rods and move slack adjusters, twisting the brake camshafts.

4 . If asked by a law enforcement officer to take a test to determine your blood alcohol concentration (BAC):

Most states have an Implied Consent Law, which means that by driving a vehicle on the state's roads, you have agreed to undergo a drug or alcohol test if a police officer asks you to do so. If you refuse to submit to a test, you will lose your operating privileges. Make sure you are aware of the laws for every state in which you drive.

5 . In general, the legal maximum width of a vehicle and load is:

12 feet In general, Wisconsin law limits the width of a vehicle (including its load) to no more than 8 feet, 6 inches.

6 . In cold weather, an alcohol evaporator should be checked and filled:

Once a month. An alcohol evaporator can help prevent ice from building up in an air brake system. In cold weather, the evaporator should be checked and refilled every day.

7 . A tread depth of ____ should be in every major groove of a tire that is not in the front of a commercial motor vehicle.

For safe operation, a commercial motor vehicle needs a tread depth of 4/32 of an inch in every major groove on the front tires, and a tread depth of 2/32 of an inch on other tires.

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2025 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.

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