Multiple Choice Question (MCQ)

Question: What is the formula for the gear ratio for thread cutting on a lathe? | ಲೇಥ್‌ನಲ್ಲಿ ಥ್ರೆಡ್ ಕತ್ತರಿಸುವ ಗೇರ್ ಅನುಪಾತದ ಸೂತ್ರ ಯಾವುದು?
A. DR/DN = TPI on lead screw / TPI to be cut
B. DR/DN = TPI to be cut / TPI on lead screw
C. DN/DR = TPI on lead screw / TPI to be cut
D. DN/DR = TPI to be cut / TPI in lead screw
Correct Answer: DR/DN = TPI on lead screw / TPI to be cut