Engineering Materials Sulphur in steel Decreases tensile strength and hardness Acts as deoxidiser Reduces the grain size Lowers the toughness and transverse ductility Decreases tensile strength and hardness Acts as deoxidiser Reduces the grain size Lowers the toughness and transverse ductility ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Steel contains Alloying elements like chromium, tungsten nickel and copper Elements like phosphorus, sulphur and silicon in varying quantities 80% or more iron 50% or more iron Alloying elements like chromium, tungsten nickel and copper Elements like phosphorus, sulphur and silicon in varying quantities 80% or more iron 50% or more iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The presence of sulphur in pig iron makes It hard It brittle It easily machinable The casting unsound It hard It brittle It easily machinable The casting unsound ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage carbon content in wrought iron is about 0.4 2 0.02 0.1 0.4 2 0.02 0.1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials For the allotropic forms of iron, the points of arrest are The points where there is no further flow of metal Constant for all metals The points of discontinuity The points where no further change occurs The points where there is no further flow of metal Constant for all metals The points of discontinuity The points where no further change occurs ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The ability of a material to resist softening at high temperature is known as Creep Hot tempering Hot hardness Fatigue Creep Hot tempering Hot hardness Fatigue ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS