Engineering Materials Vanadium in high speed steels Promotes retention of austenite Forms very hard carbides and thus increases wear resistance Provides high hot hardness Promotes decarburisation Promotes retention of austenite Forms very hard carbides and thus increases wear resistance Provides high hot hardness Promotes decarburisation ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in steel Reduces the grain size 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following impurity in cast iron makes it hard and brittle? Phosphorus Silicon Sulphur Manganese Phosphorus Silicon Sulphur Manganese ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Manganese in steel increases its Hardness Ductility Fluidity Tensile strength Hardness Ductility Fluidity Tensile strength ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The cupola is used to manufacture Steel Pig iron Cast iron Wrought iron Steel Pig iron Cast iron Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statements are true for annealing of steels? Steels are heated to 500 to 700°C Internal stresses are relieved Cooling is done slowly and steadily All of these Steels are heated to 500 to 700°C Internal stresses are relieved Cooling is done slowly and steadily All of these ANSWER DOWNLOAD EXAMIANS APP
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