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The CDL general knowledge test is required to be taken by all CDL applicants. The Wisconsin CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the Wisconsin CDL Manual. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual WI general knowledge test! To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1. _______ is the act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others.
Aggressive driving
Defensive driving
Distracted driving
Road rage
2. If a tire blows out, you should:
immediately head for the side of the road.
keep driving until you reach the next service station.
keep a firm grip on the steering wheel and stay off the brake until the vehicle has slowed down.
fully apply the brakes while holding the steering wheel firmly.
3. Use your four-way emergency flashers:
when parked at the side of the road.
to warn drivers behind you that people are working on the road.
when stopping at railroad highway crossings.
All of the above.
4. If a load is 10 feet long, the minimum number of tie-downs required is:
5. How can you tell if your vehicle is equipped with ABS?
Look for yellow ABS malfunction lamps on the instrument panel.
Trailers will have yellow ABS malfunction lamps on the left side.
Look under the vehicle for the wheel speed sensor wires coming from the back of the brakes.
All of the above.
6. Which of the following statements about cargo weight is true?
The shipper loads the cargo, and the driver is not responsible for recognizing overloads and poorly balanced weight.
It is always safe to operate at legal maximum weights.
States have maximums for GVWRs, GCWRs and axle weights. You must keep weights within legal limits.
All of the above.
7. To test your hydraulic brakes for leaks:
pump the brake pedal three times, then hold it down for five seconds.
turn off the engine and and listen for leaks.
apply firm pressure to the brakes for five seconds, then pump them three times.
None of the above.
8. To prevent your vehicle from rolling back when you start you should:
partly take your right foot off the brake before you engage the clutch.
partly engage the clutch before you take your right foot off the brake.
put the transmission in Neutral.
release the parking brake, then apply enough engine power to keep from rolling back.
9. No matter how small the cargo is, it should have at least:
2 tie-downs.
1 tie-down.
6 tie-downs.
4 tie-downs.
10. When traveling with Division 1.1, 1.2, or 1.3 explosives, do not park within _____ of a building.
150 feet
200 feet
300 feet
50 feet
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WI CDL Practice Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
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