Manufacturing And Production Technology
Hardness of green sand mould increases with

Increase in moisture content beyond 6 percent
Increase in both moisture content and permeability
Increase in permeability
Decrease in permeability

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Manufacturing And Production Technology
In transverse grinding

The work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of wheel face
The work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face
The work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
The work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face

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