FY->Module-6 : THREAD CUTTING - Practice Mode

1) Which type of thread is used in screw jack spindle?
Correct Answer: Square thread
2) A thread is represented as M12 x 1.5. What does represent the letter 12?
Correct Answer: Major diameter
3) Which method of holding is used for lengthy work to avoid over hanging?
Correct Answer: In between centres
4) Calculate the change gear required to cut 4mm pitch thread in a lathe having lead screw of 4mm (lathe stud gear (driver has 50 teeth)
Correct Answer: 50
5) Calculate the change gear (driver gear) if driven gear has 120 teeth to cut 3mm pitch on a job using lathe having 6 mm pitch lead screw?
Correct Answer: 60