MCQOPTIONS
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| 1. |
The best wire size (in mm) for measuring effective diameter of a metric thread (included angle is 60°) of 20 mm diameter and 2.5 mm pitch using two wire method is |
| A. | 1.443 |
| B. | 0.723 |
| C. | 2.886 |
| D. | 2.086 |
| Answer» B. 0.723 | |