Knowledge Test Class B #2
Class B Driving Test | Wisconsin 2026 #2 Page 5 of 7
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 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 CDL class B requirements may vary from state to state.
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29 . Bridges usually:
Have heaters to prevent them from freezing.
Bridges usually freeze before the rest of the road. You should be especially careful when crossing bridges if the temperature is near the freezing point.
30 . Braking mechanisms are located inside:
Drum brakes are attached to the wheels and located on the axles of a vehicle. The braking mechanisms that cause the vehicle to stop can be found inside of a drum brake.
31 . To be a school bus driver, an applicant must be at least:
25 years old.
In Wisconsin, you must be at least 18 years old to be licensed as a school bus driver.
32 . Water that has collected on a roadway can cause:
The risk of hydroplaning begins when water has collected on the surface of a road.
33 . When you press the brake pedal in a vehicle with S-cam brakes, air pressure pushes out the rod and moves the:
Alcohol evaporator.
