Q 15. A CNC vertical milling machine has to cut a straight slot of 10 mm width and
2mm depth by a cutter of 10 mm diameter between points (0,0) and (100,100) on
the XY plane (dimensions in mm). The feed rate used for milling is 50 mm/min
. Milling time for the slot (in seconds) is
(A) 120
(B) 170
(C) 180
(D) 240
Answer: (B)
Explanation: