The abrasive material used in grinding wheel selected for grinding of ferrous alloys is

Cellular manufacturing is suitable for

Disposable patterns are made of

In finish machining of an island on a casting with $$CNC$$ milling machine, an end mill with $$10$$ $$mm$$ diameter is employed. The corner points of the island are represented by $$(0,0), (0,30), (50,30)$$ and $$(50,0)$$. By applying cutter radius right compensation, the trajectory of the cutter will be