The ____ operation is usually the first operation to be performed on a turned workpiece.
A) drilling
B) facing
C) contouring
D) roughing

Question

Quizplus · Accepted Answer

Facing is usually the first operation to be performed on a turned workpiece because it creates a flat surface on the end of the workpiece which can then be used as a reference for subsequent operations. Drilling, contouring, and roughing may come later in the machining process.

The ____ Operation Is Usually the First Operation to Be