Mechanical Engineering > GATE 2014 Set-1 > CNC Machining
For machining a rectangular island represented by coordinates P(0,0), Q(100,0), R(100,50) and S(0,50) on a casting using CNC milling machine, an end mill with a diameter of 16 mm is used. The trajectory of the cutter centre to machine the island PQRS is
A
(-8, -8), (108, -8), (108,58), (-8,58) , (-8, -8)
B
(8,8), (94,8), (94,44), (8,44), (8,8)
C
(-8,8), (94,0), (94,44), (8,44), (-8,8)
D
(0,0), (100,0), (100,50), (50,0), (0,0)

Correct : a

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