31) Calculated the rpm of spindle if cutting speed ?V? is 120m/min and the diameter ?D? of the job is 50 mm?

32) Calculate the spindle speed to turn a 40mm dia M.S rod using a cemented carbide tool it cutting speed is 92mm/min?

33) Calculate the length of metal passing by cutting tool in one revolution if the diameter of work is 75mm and cutting speed is 120m/min.

34) Find out the R.P.M of spindle for a 50mm bar (D) and cutting speed is 25m/min.

35) Which type of jig locates the piece part from its face?