Engineering Materials The percentage of carbon in grey iron castings usually varies between 5 to 7% 2.5 to 4.5% 0.5 to 1% 0.012 5 to 7% 2.5 to 4.5% 0.5 to 1% 0.012 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A reversible change in the atomic structure of steel with corresponding change in the properties is known as Molecular change Physical change Allotropic change Solidus change Molecular change Physical change Allotropic change Solidus change ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The material in which the atoms are arranged regularly in some directions but not in others, is called None of these Crystalline material Amorphous material Mesomorphous material None of these Crystalline material Amorphous material Mesomorphous material ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Aluminium bronze contains 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg 10% aluminium and 90% copper 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 90% magnesium and 9% aluminium with some copper 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg 10% aluminium and 90% copper 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 90% magnesium and 9% aluminium with some copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Process of Austempering results in Lamellar layers of carbide distributed throughout the structure Carburised structure Formation of bainite structure Martenistic structure Lamellar layers of carbide distributed throughout the structure Carburised structure Formation of bainite structure Martenistic structure ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in cast iron Make the iron white and hard Increases hardness and brittleness Aids fusibility and fluidity Makes the iron soft and easily machinable Make the iron white and hard Increases hardness and brittleness Aids fusibility and fluidity Makes the iron soft and easily machinable ANSWER DOWNLOAD EXAMIANS APP
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