Q 24. A steel bar 200 mm in diameter is turned at a feed of 0.25 mm/rev with a depth
of cut of 4 mm. The rotational speed of the workpiece is 160 rpm. The material
removal rate in mm3/s is
(A) 160
(B) 167.6
(C) 1600
(D) 1675.5
Answer: (D )
Explanation:
