A cylinder contains a fluid at a gauge pressure of 350 kN m-2. Express this pressure in terms of a head of (a) water (pwater = 1000 kgm-3) and (b) mercury (relative density13.6kgm-3). What would be the absolute pressure in the cylinder if the atmospheric pressure is at 101.3 kNm-2? *

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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.