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1. |
A simple quick return mechanism is shown in the figure. The forward to return ratio of the quick return mechanism is 2:1. If the radius of the crank O1P is 125 mm, then the distance’s’ (in mm) between the crank centre to lever pivot centre point should be. |
A. | 144.3 |
B. | 216.5 |
C. | 240 |
D. | 250 |
Answer» E. | |