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				| 1. | Find the extrusion pressure for the metal having extrusion constant 5*109. The initial and final cross-sectional area is 50 mm2 and 10 mm2? | 
| A. | 402 kN | 
| B. | 300 kN | 
| C. | 250 kN | 
| D. | 4864 kN | 
| Answer» B. 300 kN | |