CDL Vehicle Combination Practice Test

Overloading a combination vehicle significantly impacts its performance and safety. When a vehicle is overloaded, it means that it is carrying more weight than it is designed to handle. This excess weight can lead to reduced braking capability because the braking system must work harder to bring the vehicle to a stop. The increased weight can also affect the vehicle's handling and stability, making it more difficult to steer and control.

Additionally, overloading contributes to increased tire wear. The tires must support the additional weight, which results in more friction and heat generation. This can lead to faster deterioration of the tires, and in some cases, contribute to blowouts or tire failures. Therefore, the correct answer highlights the dangers of overloading, emphasizing the reduction in braking efficiency and the increased wear on tires caused by carrying too much weight. Understanding these effects is crucial for safe operation and maintaining the vehicle's integrity over time.