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

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

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Manufacturing And Production Technology
Glazing in grinding wheels takes place when the

Wheel is too soft or wheel revolves at a very slow speed
Wheel is too soft and wheel revolves at a very high speed
Wheel is too hard or wheel revolves at a very high speed
Wheel is too hard and wheel revolves at very slow speed

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