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

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

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Manufacturing And Production Technology
Which of the following statement is incorrect with reference of lathe cutting tools?

The base is that surface of the shank which bears against the support and takes tangent pressure of the cut
The flank of the tool is the surface or surfaces below and adjacent to the cutting edges
The nose is the corner, arc or chamfer joining the side cutting and the end cutting edges
The heel is that part of the tool which is shaped to produce the cutting edges and face

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