Engineering Materials Smelting is the process of Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns Reducing the ore with carbon in the presence of a flux Removing the impurities like clay, sand etc. from the iron ore by washing with water All of these Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns Reducing the ore with carbon in the presence of a flux Removing the impurities like clay, sand etc. from the iron ore by washing with water All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Manganese is added in low carbon steel to All of these Make the steel ductile and of good bending qualities Raise the yield point Make the steel tougher and harder All of these Make the steel ductile and of good bending qualities Raise the yield point Make the steel tougher and harder ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following constituents of steels is softest and least strong? Austenite Pearlite Ferrite Cementite Austenite Pearlite Ferrite Cementite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has maximum ductility? Copper Mild steel Aluminium Nickel Copper Mild steel Aluminium Nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten when added to steel __________ the critical temperature. None of these Does not effect Raises Lowers None of these Does not effect Raises Lowers ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Blast furnace is used to produce Wrought iron Pig iron Cast iron Steel Wrought iron Pig iron Cast iron Steel ANSWER DOWNLOAD EXAMIANS APP
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