Analysis of Gravity Dam _ Advance Engineering Mathematics Review
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Selected solution to problems from Advanced Engineering Mathematics 4th edition
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Manometers Tags: pre pressure ssure he head ad di differen fferenti tial al mano anom met eter er mano anom mete eterr ope open n man anom omete eterr pi piezom ezomete eterr pre pressure ssure ga gauge uge U-tu -tube be
Manometer is Manometer is a simple and inexpensive device of measuring pressure and pressure difference. It is usually bent to form a U-tube and filled with liquid of known specific gravity. The surface of the liquid will move in proportion to changes of pressure.
Types of Manometer Piezometer Piezometer is the simplest form of manometer which is tapped into the wall of pressure conduit for the purpose of measuring pressure. Though effective in many purposes, piezometer is not practical to use in lighter liquids with large pressure and cannot be used to measure gas pressure.
From the figure above, three piezometers A, B, and C are attached to a pressure conduit at bottom, top, and side, respectively. The column of liquid at A, B, and C will will rise at the same level above M indicating a positive pressure at M. Also, the piezometer piezometer D measures the negative pressure at N. Open Manometer Open manometer is a tube bent into a U-shape to contain one or more fluids of different specific gravities. It is used to measure pressure. Example of open manometer is shown below.
Differential Differential M anometer anometer Differential manometer cannot measure pressure but can measure pressure difference. Frequently in hydraulic problems, difference in pressure is more useful information than the pressure itself.
► Solving Problems ► Open Tube Manometer ► Water Problems
