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A grinding ratio of 200 implies that the

1. grinding wheel wears 200 times the volume of the material removed
2. grinding wheel wears 0.005 times the volume of the material removed
3. aspect ratio of abrasive particles used in the grinding wheel is 200
4. ratio of volume of abrasive particle to that of grinding wheel is 200

Correct answer: grinding wheel wears 200 times the volume of the material removed

Solution

A grinding ratio of 200 indicates that for every unit volume of material removed, the grinding wheel itself wears away 200 times that volume, highlighting the efficiency and wear characteristics of the grinding process.

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