CDL General Knowledge Practice Test

Acceleration is a critical aspect of safe driving, especially in commercial vehicles. The statement that rough acceleration can cause mechanical damage is true because sudden, harsh acceleration puts significant stress on a vehicle's components. This can lead to increased wear and tear on the engine, transmission, and drivetrain, potentially resulting in costly repairs and decreased vehicle longevity.

Additionally, rough acceleration can negatively impact fuel efficiency, increase emissions, and compromise safety by making it harder to maintain control of the vehicle. Smooth and gradual acceleration allows mechanical systems to work within their design limits, promoting vehicle maintenance and ensuring that you can react appropriately in various driving conditions.

While other statements may contain kernels of truth, they do not fully capture the importance of smooth acceleration in preserving vehicle integrity and safety on the road.