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| Q. |
What is the range of straightness measurement in straightness measurement optics? |
| A. | ±2.5 mm |
| B. | ±5 mm |
| C. | ±10 mm |
| D. | ±20 mm |
| Answer» A. ±2.5 mm | |
| Explanation: to measure straightness errors in a linear axis, straightness measurement optics are used. for both short range and long range measurement, length of straightness measurement is ±2.5 mm. | |
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