Engineering Materials Nodular cast iron is produced by adding ________ to the molten cast iron. Chromium Magnesium Nickel Copper Chromium Magnesium Nickel Copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following is the binding material in cemented carbides? Cobalt Vanadium Nickel Iron Cobalt Vanadium Nickel Iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following represents the allotropic forms of iron? Alpha iron, beta iron and gamma iron Alpha iron and beta iron Alpha iron, gamma from and delta iron Body centered cubic iron and face centered cubic iron Alpha iron, beta iron and gamma iron Alpha iron and beta iron Alpha iron, gamma from and delta iron Body centered cubic iron and face centered cubic iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Nickel in steel Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Nodular iron has High machinability High tensile strength All of these Low melting point High machinability High tensile strength All of these Low melting point ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Duralumin contains 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium 5 to 6% tin, 2 to 3% copper and rest aluminium 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium 5 to 6% tin, 2 to 3% copper and rest aluminium ANSWER DOWNLOAD EXAMIANS APP
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