Which item should be specified for surface finishing on every surface?

• A. Surface finish specifications for every surface
• B. Units specification
• C. Material specification
• D. Unique part name

Answer: (A)

The main idea here is that surface finish requirements must be defined for each surface of the part. Each face can have different functional or aesthetic needs, so specifying the finish for every surface provides clear, unambiguous guidance to manufacturing and inspection about what finish to achieve on each face and how it will be verified. Without per-surface specification, some areas might be over- or under-finished, leading to assembly fit, wear, or appearance issues.

The other options don’t address finishing at the surface level. Units specification relates to measurement units, not the finish itself. Material specification covers what the part is made from, which affects properties but not the requested finishing on each surface. A unique part name is for identification and does not convey finishing requirements.