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| Q. |
What is the limitation of microscopic inspection to check surface finish? |
| A. | an average value is needed |
| B. | small portion of surface can be detected at a time |
| C. | a master finish surface is also needed |
| D. | it is necessary to inspect whole surface together |
| Answer» B. small portion of surface can be detected at a time | |
| Explanation: microscopic inspection method have some limitation that at a time only a small portion of the surface can be inspected. so for inspection, several readings are required in this method to get an average value. | |
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