Engineering Materials 1841 high speed steel contains None of these Vanadium 18%, chromium 1% and tungsten 4% Vanadium 1%, chromium 4% and tungsten 18% Vanadium 4%, chromium 18% and tungsten 1% None of these Vanadium 18%, chromium 1% and tungsten 4% Vanadium 1%, chromium 4% and tungsten 18% Vanadium 4%, chromium 18% and tungsten 1% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness 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 cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The presence of sulphur in pig iron makes It brittle It hard It easily machinable The casting unsound It brittle It hard It easily machinable The casting unsound ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in steel Acts as deoxidiser Lowers the toughness and transverse ductility Decreases tensile strength and hardness Reduces the grain size Acts as deoxidiser Lowers the toughness and transverse ductility Decreases tensile strength and hardness Reduces the grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Steel contains 50% or more iron 80% or more iron Elements like phosphorus, sulphur and silicon in varying quantities Alloying elements like chromium, tungsten nickel and copper 50% or more iron 80% or more iron Elements like phosphorus, sulphur and silicon in varying quantities Alloying elements like chromium, tungsten nickel and copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The temperature required for full annealing in hypereutectoid steel is 30° C to 50° C above upper critical temperature 30° C to 50° C below lower critical temperature 30° C to 50° C below upper critical temperature 30° C to 50° C above lower critical temperature 30° C to 50° C above upper critical temperature 30° C to 50° C below lower critical temperature 30° C to 50° C below upper critical temperature 30° C to 50° C above lower critical temperature ANSWER DOWNLOAD EXAMIANS APP
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