Question 645General Subjects - Assistant Engineer

The correct answer is D) The distance from the bottom of the cut to the uncut surface of the work piece. Depth of cut refers to the thickness of the material that is removed from the workpiece in a single pass of the cutting tool on a lathe. It is the distance between the uncut surface of the workpiece and the bottom of the cut made by the tool. This is the key defining characteristic of depth of cut, and it directly impacts the size and shape of the material being removed. The other answer choices do not accurately define depth of cut. A and C refer to the rate of material removal, not the depth of the cut itself. B describes the feed rate, which is the distance the tool advances with each revolution, not the depth of the cut.