Manufacturing And Production Technology
While cutting helical gears on a non-differential gear hobber, the feed change gear ratio is

Independent of speed and index change gear ratio
Interrelated to index change gear ratio
Dependent on speed change gear ratio
Independent of index change gear ratio

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Manufacturing And Production Technology
The lip clearance angle is the angle formed by the

Leading edge of the land with a plane having the axis of the drill
Chisel edge and the lip as viewed from the end of a drill
Flank and a plane at right angles to the drill axis
None of the listed here

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