Question

A single start thread of pitch 2 mm is to be produced on a lathe having a lead screw with a double start thread of pitch 4 mm.The ratio of speeds between the spindle and lead screw for this operation is

• A. 1:2
• B. 2:1
• C. 1:4
• D. 4:1

Answer 1

Answer:

D. 4:1