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Q. Can you explain about Fuel Oil and Dextrin?
Fuel Oil: It improves the mould ability of sand.
Iron Oxide: It develops hot strength.
Dextrin: It increases air setting strength, toughness and collapsibility and prevents sand from drying rapidly. During pouring of molten metal, it gasifies, thus producing extra space between the grains without any grain distortion.
Molasses: It is the by product of sugar industry. It enhances the bench life of sand and imparts high dry strength and collapsibility to moulds and cores. Due to high temperature in the mould; it develops CO2 which sets up a hardening action of the mould.
Sound Waves in Gases Sound waves are longitudinal pressure waves. Let us consider the motion of a plane sound wave moving along X-axis in a gas medium. In undisturbed positio
Q. A supported rectangular beam with the symmetrical section 200mm in depth is having moment of inertia of 2.26 x 10 -5 m 4 about its neutral axis. Find out longest span over w
prove that the weight of a body at an elevation of h from sea level is expressd by the equation
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COMPRESSOR MOSTLY USED FOR SUPERHEATING OF IC ENGINES IS CALLED ----------COMPRESSORS
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