Manufacturing And Production Technology
The maximum possible draft in cold rolling of sheet increases with the

Decrease in coefficient of friction
Increase in coefficient of friction
Decrease in roll radius
Decrease in roll velocity

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

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

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Manufacturing And Production Technology
In plunge grinding

The work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
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 longer than the width of wheel face

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