An orthogonal operation is carried out at 20m/min cutting speed, usingcutting tool of rake angle 15deg. The chip thickness is 0.4mm and uncut chip thickness is 0.2mm.
The shear angle (in degrees) is
(a) 26.8 (b) 27.8 (c) 28.8 (d) 29.8
The chip velocity (in m/min) is
(a) 8 (b) 10 (c) 12 (d) 14