Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g; tough bronze). Grinding is a __________ operation.

ANS:D - surface finishing

Certainly! Surface finishing is a process that alters the surface of a material to achieve a certain desired quality, such as smoothness, flatness, or roughness. In the context of grinding, it involves the removal of material from the surface of the workpiece to improve its surface texture, dimensional accuracy, and/or surface integrity. When using a grinding wheel made of silicon carbide for materials with low tensile strength like tough bronze, the abrasive properties of silicon carbide are particularly effective at removing material from the surface of the workpiece. This process helps to refine the surface, making it smoother and more uniform, thereby achieving the desired surface finish. In summary, grinding with a silicon carbide grinding wheel on materials of low tensile strength like tough bronze is primarily aimed at achieving a desired surface finish, making "surface finishing" the most appropriate categorization for the operation.