Manufacturing And Production Technology
In a CNC program block, N002 GO2 G91 X40 Z40......, GO2 and G91 refer to

Circular interpolation in clockwise direction and absolute dimension
Circular interpolation in counter clockwise direction and incremental dimension
Circular interpolation in counter clockwise direction and absolute dimension
Circular interpolation in clockwise direction and incremental dimension

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Manufacturing And Production Technology
A jig is defined as a device which

Holds and locates a workpiece during an inspection or for a manufacturing operation
Holds and locates a workpiece and guides and controls one or more cutting tools
Is used to check the accuracy of workpiece
All of these

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