What are the three basic steps in the manufacture of a pneumatic tire?

The process of manufacturing a pneumatic tire consists of three basic steps that capture the essential phases from the initial production to the final curing of the product. The correct sequence begins with preforming the components, which involves shaping and preparing the various materials used in the tire, such as the rubber and reinforcing fabrics.

Next, building the carcass entails assembling these preformed components into a tire structure. This step is crucial as it lays the foundational shape and strength of the tire through a careful incorporation of layers and materials that provide durability and performance.

Finally, molding and curing is the step where the assembled tire undergoes high-temperature treatment. This process enables the rubber to vulcanize, enhancing its strength, elasticity, and overall performance characteristics. The finished tire then goes through quality checks to ensure it meets necessary specifications before being deemed suitable for use.

In contrast to the other options, they do not accurately reflect the entire manufacturing process of a tire. For instance, simply cutting the rubber and stitching seams does not encompass the comprehensive aspects of tire assembly and curing. Forming tread and connecting the rim or balancing the tire represents procedural steps that come either before or after the main manufacturing phases, not foundational parts of the primary process. Thus, only the first option correctly outlines