Question 158General Subjects - QMED70% to pass
When a lathe is used for thread cutting, the number of threads per inch produced is determined by the speed relationship between the _______________.
AI Explanation
The correct answer is A) lead screw and headstock spindle.
When a lathe is used for thread cutting, the number of threads per inch produced is determined by the speed relationship between the lead screw and the headstock spindle. The lead screw is responsible for advancing the carriage and cutting the threads, while the headstock spindle provides the rotational motion to the workpiece. By adjusting the relative speeds of these two components, the operator can control the number of threads per inch being cut.
The other options are incorrect because they do not directly influence the thread pitch. The relationship between the drive motor and spindle (option B) affects the overall spindle speed, but not the specific thread pitch. The relationship between the spindle and feed rod (option C) determines the feed rate, but not the thread pitch. The relationship between the lead screw and feed rod (option D) affects the carriage movement, but not the thread pitch.
Related Questions
#156 If the distances "A" and/or "B" as shown in the illustration are excessively increased, the tool will _______________. Illustration GS-0085#157 A work piece has been mounted between centers and a test cut machined at each end to check alignment of the lathe centers. If the test cut on the tailstock end is deeper than the test cut on the headstock end, the tailstock must be moved _______________.#159 To commence cutting threads with a metal lathe, you should engage the _______________.#160 Work that cannot readily be mounted between lathe centers is usually held in a _______________.#161 A tailstock 'dead center' has been given that name because it _______________.