Question 162General Subjects - QMED

The correct answer is A) any numbered line on the dial. When cutting an odd-numbered thread using a lathe's thread dial indicator, you should close the lathe's split or half-nut on any numbered line on the dial. This is because the thread dial indicator is designed to align the lead screw of the lathe with the workpiece, allowing you to cut the desired thread pitch accurately, regardless of whether the thread is odd or even numbered. The other options are incorrect because B) closing on even-numbered lines only would not work for cutting odd-numbered threads, C) closing on odd-numbered lines only is unnecessary, and D) closing on any line, regardless of numbering, is not the optimal technique for cutting odd-numbered threads.