A cylindrical specimen of mild steel having 20% ductility (in percentage of reduction in area) is tensile tested and fractured at a stress of 600 MPa. If original diameter is 10 mm, what is the true stress at fracture. A) 602 MPa B) 750 MPa C) 492 MP D) 810 MPa

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Engineering Drawing

Technical drawing has been around since ancient times. As in the ancient Renaissance, complicated drawings were created, including Leonardo da Vinci's drawing. Modern engineering drawing, including its specific orthographic projection with scale conventions, began in Europe (France) during the early stages of Industrialization. L.T. C. Rolt also made some of Marc's drawings for its block-making machinery (in 1799) that also may have contributed significantly to British engineering technology. Since he learned the art of presenting three-dimensional(3D) items in a two-dimensional(2D) plane, as we now term mechanical drawing.