Engineering Materials Recrystallization temperature is one At which crystals first start forming from molten metal when it is cooled At which crystals grow bigger in size At which change of allotropic form takes place At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated At which crystals first start forming from molten metal when it is cooled At which crystals grow bigger in size At which change of allotropic form takes place At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Vanadium in high speed steels Provides high hot hardness Forms very hard carbides and thus increases wear resistance Promotes retention of austenite Promotes decarburisation Provides high hot hardness Forms very hard carbides and thus increases wear resistance Promotes retention of austenite Promotes decarburisation ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following property is desirable in parts subjected to shock and impact loads? Toughness Strength Brittleness Stiffness Toughness Strength Brittleness Stiffness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about tempering? Tempering is done to Release stresses Improve ductility Improve machinability Improve toughness Release stresses Improve ductility Improve machinability Improve toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tensile strength of steel can be safely increased by Adding carbon up to 6.3% Adding small quantities of copper Adding carbon up to 2.8% Adding carbon up to 0.83% Adding carbon up to 6.3% Adding small quantities of copper Adding carbon up to 2.8% Adding carbon up to 0.83% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Aluminium bronze contains 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg 90% magnesium and 9% aluminium with some copper 10% aluminium and 90% copper 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg 90% magnesium and 9% aluminium with some copper 10% aluminium and 90% copper ANSWER DOWNLOAD EXAMIANS APP
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