Arkansas Commercial Driver License (CDL) Practice Test

When the rear wheels of a vehicle lock up, it means that they have completely stopped rotating while the vehicle is still in motion. This can happen due to hard braking or sudden changes in direction. As a result, the vehicle can slide sideways in a slideout because the rear wheels are not able to provide any traction or stability. This is why it is important to avoid locking up your rear wheels while driving, as it can lead to loss of control and potential accidents. The other options are incorrect because they do not accurately describe the consequences of locked up rear wheels. Steering becoming easier or brakes overheating are not likely outcomes of rear wheel lock-up. Similarly, the vehicle pulling to one side is more likely to happen if the front wheels are locking up, not the rear wheels.