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| Q. |
Which of the following materials can be machined using Electro discharge machining? |
| A. | heat resistant alloys |
| B. | super alloys |
| C. | carbides |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: edm is used to machine materials such as carbides, heat resistant and super alloys which are difficult-to-machine materials. | |
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