55) Determine the height of slip gauges for an angle of 30 degree using a sine bar of 200 mm length

56) Find the cutting speed ofr a tool to cut a shaft of 14 mm radius rotating at 2 revolutions per secon

57) What is the depth of thread for M10 x 1.5?

58) A tool with a top rake angle of 12 degree and a front clearance angle of 6 degree is set on a lathe at a level 2 mm above the centre of a circular rod being turned. The point where tool tip touches the job subtends 4 degree from the horizontal line joining

59) A mild steel rod of dia 40 mm and length 100 mm has to be turned to dia 30 mm in one cut for full length using HSS tool with a feed rate of 0.1 mm/revolution. Determine the turning time with a speed of 200 rpm.