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 chips are disposed off easily and do not interfere with the cutting.
The surface milled appears to be slightly wavy.
The coolant can be poured directly at the cutting zone where the cutting force is maximum.

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Manufacturing And Production Technology
In centreless grinding, work place centre will be

At the intersection of the line joining the wheel centres with the work place plane
Above the line joining the two wheel centres
On the line joining the two wheel centres
Below the line joining the two wheel centres

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