What is the purpose of an automatic load-sensitive braking system (ALB)?

You are correct. An automatic load-sensitive braking system (ALB) automatically adjusts the braking force based on the actual mass of the vehicle, meaning how heavily the vehicle is loaded. This helps ensure optimal braking performance and safety, as a heavier vehicle needs more braking force and a lighter vehicle needs less to avoid skidding or wheel lock. The system does not adjust for road surface or vehicle speed, only for the load the vehicle is carrying. Knowing this can help you correctly identify similar questions about braking systems and their functions in the future.