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| Q. |
Which of the following material/s cannot be used for making of nozzle in Abrasive jet machining? |
| A. | tungsten carbide |
| B. | steel alloy |
| C. | sapphire |
| D. | synthetic sapphire |
| Answer» B. steel alloy | |
| Explanation: nozzle in abrasive jet machining is made up of sapphire or wc. | |
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