What should be done to prevent an air hose from dragging when the train moves?

Answer: B — Inspect for condition, couple properly, and secure all brake equipment

To prevent an air hose from dragging when the train moves, it is crucial to inspect the condition, couple the hoses properly, and secure all brake equipment. Proper coupling ensures that the hoses are connected correctly, allowing for smooth operation without excessive slack that might cause dragging. Securing the brake equipment ensures that everything remains in place during movement, which helps to maintain the integrity of the air brake system and prevent any potential hazards associated with loose or dragging hoses. When air hoses are not inspected, coupled properly, or secured, they can become loose, leading to dragging as the train moves. This can put stress on the hoses and connections, potentially leading to damage. Hence, following proper procedures is essential for operational safety and efficiency in train operations.