Engineering Materials When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron. None of these Free graphite Cementite Both A and B None of these Free graphite Cementite Both A and B ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In which of the following cases, consideration of creep is important Flywheel of steam engine Gas turbine blades Cast iron pipes Cycle chains Flywheel of steam engine Gas turbine blades Cast iron pipes Cycle chains ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials For the allotropic forms of iron, the points of arrest are Constant for all metals The points where no further change occurs The points where there is no further flow of metal The points of discontinuity Constant for all metals The points where no further change occurs The points where there is no further flow of metal The points of discontinuity ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Permalloy is a Nickel and iron alloy having high permeability Polymer Kind of stainless steel None ferrous alloy Nickel and iron alloy having high permeability Polymer Kind of stainless steel None ferrous alloy ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Smelting is the process of Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns Reducing the ore with carbon in the presence of a flux Removing the impurities like clay, sand etc. from the iron ore by washing with water All of these Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns Reducing the ore with carbon in the presence of a flux Removing the impurities like clay, sand etc. from the iron ore by washing with water All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When the steel is normalized, its All of these Ductility decreases Ultimate tensile strength increases Yield point increases All of these Ductility decreases Ultimate tensile strength increases Yield point increases ANSWER DOWNLOAD EXAMIANS APP
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