Coast Guard Exams
Question 161General Subjects - QMED70% to pass

A tailstock 'dead center' has been given that name because it _______________.

AI Explanation
The correct answer is D) does not revolve. The "dead center" on a tailstock refers to the non-rotating center point that supports the work piece on the lathe. This stationary center point provides stability and support for the work piece, unlike a "live center" which rotates with the work piece. The "dead center" is so named because it does not revolve, unlike the rotating work piece. The other answer choices are incorrect because they do not accurately describe the defining characteristic of a "dead center" - its lack of rotation.