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?

36) What defect may occur during grinding a form tool cutting edge?

37) What will happen to the tool life if the spindle is running higher speed?