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| Q. |
What are the values of dimensional accuracy obtained while machining spherical surfaces? |
| A. | ± 1 µm |
| B. | ± 3 µm |
| C. | ± 5 µm |
| D. | ± 7 µm |
| Answer» A. ± 1 µm | |
| Explanation: dimensional accuracy of ± 1 µm is obtained while machining spherical surfaces using edm. | |
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