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1. |
A steel bar ABC (E = 200 GPa) is 1 m long. For AB = 0.7 m, it has cross section P area of 500 mm2 and for BC = 0.3 m the cross section area is 400 mm2. The bar is subjected to an axial pull of 100 kN. The stress is maximum in ___ _ |
A. | ab |
B. | bc |
C. | same throughout |
D. | none of these |
Answer» C. same throughout | |