Engineering Materials Chromium in steel Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following represents the allotropic forms of 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 Alpha iron, beta iron and gamma iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The heat treatment process used for softening hardened steel is Annealing Normalizing Tempering Carburising Annealing Normalizing Tempering Carburising ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Iron ore is usually found in the form of Oxides Sulphides All of these Carbonates Oxides Sulphides All of these Carbonates ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials An eutectoid steel consists of Wholly pearlite Pearlite and ferrite Pearlite and cementite Wholly austenite Wholly pearlite Pearlite and ferrite Pearlite and cementite Wholly austenite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has nearly zero coefficient of expansion? Invar Stainless steel Heat resisting steel High speed steel Invar Stainless steel Heat resisting steel High speed steel ANSWER DOWNLOAD EXAMIANS APP
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