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| 1. |
If n=rpm of the bull wheel=2, l= length of the cutting stroke in mm=2.5mm and cutting speed = 0.5 mm/minute. m= the ratio between return time to cutting time. Then find the value of m. |
| A. | 10 |
| B. | 9 |
| C. | 100 |
| D. | 99 |
| Answer» C. 100 | |