Engineering Materials The blade of a power saw is made of Boron steel Stainless steel High speed steel Malleable cast iron Boron steel Stainless steel High speed steel Malleable cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel 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 Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Compressive strength of grey cast iron in tonnes/cm is of the order of 57 1015 35 710 57 1015 35 710 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in steel Reduces the grain size Lowers the toughness and transverse ductility Acts as deoxidiser Decreases tensile strength and hardness Reduces the grain size Lowers the toughness and transverse ductility Acts as deoxidiser Decreases tensile strength and hardness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Ball bearings are, usually, made from Low carbon steel Chrome steel High carbon steel Medium carbon steel Low carbon steel Chrome steel High carbon steel Medium carbon steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following represents the allotropic forms of iron? Body centered cubic iron and face centered cubic iron Alpha iron, beta iron and gamma iron Alpha iron, gamma from and delta iron Alpha iron and beta iron Body centered cubic iron and face centered cubic iron Alpha iron, beta iron and gamma iron Alpha iron, gamma from and delta iron Alpha iron and beta iron ANSWER DOWNLOAD EXAMIANS APP