A parting tool has a ground front clearance angle of 60 and the back rake angle of 100. The tool, by mistake, was set 1.5 mm above the line of centers while machining a job of 50 mm out-side diameter
i) The effective rake and clearance angle as
(a) 2.56 & 10.44 (b) 13.44 & 2.56
(c) 13.44 & 3.56 (d) none
ii) The diameter of the job at which, while parting, the tool will start rubbing
a) 35mm (b) 28.7mm (c) 57.4mm d) none