CDL Vehicle Combination Practice Test

What action is recommended when coming to a stop while driving a combination vehicle?

1. Apply firm pressure to brakes

2. Shift into neutral

3. Perform a controlled slowdown

4. Use engine braking only

The correct answer is: Perform a controlled slowdown

Performing a controlled slowdown is the recommended action when coming to a stop while driving a combination vehicle. This approach involves gradually reducing speed, which helps to maintain control of the vehicle during the stopping process. A controlled slowdown allows the driver to assess the traffic conditions and adjust their braking as necessary, providing a smoother stop and minimizing the risk of losing control. This method is particularly important with combination vehicles, as they are longer and heavier, and improper braking can lead to jackknifing or losing traction. By allowing for a controlled approach to stopping, drivers ensure that they can effectively manage the dynamics of the vehicle and its load, ensuring safety for themselves and others on the road. Additionally, while applying firm pressure to the brakes may seem like a good option, it does not account for the need to gradually reduce speed in a controlled manner. Shifting into neutral may lead to a loss of vehicle control, and engine braking only is often not sufficient for a complete stop, especially in combination vehicles where weight plays a significant role in braking effectiveness.