Engineering Materials Y-alloy contains 4 to 4.5% magnesium, 3 to 4% 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 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 4 to 4.5% magnesium, 3 to 4% 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 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
Engineering Materials Which of the following represents the allotropic forms of iron? Alpha iron, beta iron and gamma iron Alpha iron and beta iron Body centered cubic iron and face centered cubic iron Alpha iron, gamma from and delta iron Alpha iron, beta iron and gamma iron Alpha iron and beta iron Body centered cubic iron and face centered cubic iron Alpha iron, gamma from and delta iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Machining properties of steel are improved by adding Chromium, nickel Vanadium, aluminium Sulphur, lead, phosphorous Silicon, aluminium, titanium Chromium, nickel Vanadium, aluminium Sulphur, lead, phosphorous Silicon, aluminium, titanium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A small percentage of boron is added to steel in order to Reduce machinability Increase wear resistance Increase endurance strength Increase hardenability Reduce machinability Increase wear resistance Increase endurance strength Increase hardenability 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 Amorphous material Mesomorphous material Crystalline material None of these Amorphous material Mesomorphous material Crystalline material ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following metal is used for nuclear energy? All of these Niobium Thorium Uranium All of these Niobium Thorium Uranium ANSWER DOWNLOAD EXAMIANS APP
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