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Q. Maintenance requirement at storage tanks?
Little maintenance is required at storage tanks; sometimes access is required for equipment used to remove accumulated solids (this should be noted on P&ID). Wherever possible the berm wall height should allow operators to look into the berm without climbing stairs. Access stairs should be provided at two positions preferably at opposite ends of the storage compound. Stairs should be located to allow operators safe escape routes from the compound in an emergency. Vehicle access into the berm is sometimes required.
Typically access to tank roofs should be by spiral staircase, positioned so that the bottom landing leads personnel towards a safe escape route (upwind of tank). If access to the tank roof is by a straight ladder, that ladder should be located upwind of the tank.
Q. Explain Sand and moulding sands? Sand according to the amount of clayey matter they contain, the moulding sands are classified as: • Silica sand: Up to 20% clay. •
What is Two Way Punching Shear? Two Way Punching Shear In columns, generally the tendency of the column is to punch through the footing. This also is to be considered in de
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(a) Show that all reversible engines operating between the same source and sink will have same efficiency. (b) A reversible heat engine operates between two reservoirs at temper
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(a) Illustrate critical damping and its uses. (b) A horizontal spring mass system with coulomb damping has a mass of 5 Kg attached to a spring of stiffness 1KN/m. if the coeffic
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Backup Purge Backup purge gas can also be used to protect the under side of the weld and its adjacent base metal surfaces from oxidation on the time of welding . Uniformity
what is green chemistry with diagram
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