Manufacturing And Production Technology
Which of the following statement is wrong as regard to down milling?

It can not be used on old machines due to backlash between the feed screw of the table and the nut.
The coolant can be poured directly at the cutting zone where the cutting force is maximum.
The surface milled appears to be slightly wavy.
The chips are disposed off easily and do not interfere with the cutting.

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Manufacturing And Production Technology
The effect of setting a boring tool above center height leads to

Increase in the effective rake angle and a decrease in the effective clearance angle
Decrease in the effective rake angle and an increase in the effective clearance angle
Decrease in both effective rake angle and effective clearance angle
Increase in both effective rake angle and effective clearance angle

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Manufacturing And Production Technology
In transverse grinding

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

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