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| Q. |
Surface roughness depends on which of the following parameters in Abrasive water jet machining? |
| A. | work piece material |
| B. | grit size |
| C. | abrasive type |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: all the parameters mentioned above, are responsible for variation in surface roughness. | |
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