Engineering Materials Smelting is the process of Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns All of these 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 Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns All of these 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cold rolled steel sheets contain carbon of the following order 0.006 0.001 0.002 0.004 0.006 0.001 0.002 0.004 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 Addition of lead and bismuth to aluminium results in One of the best known age and precipitation hardening systems Improvement of casting characteristics Improvement of corrosion resistance Improving machinability One of the best known age and precipitation hardening systems Improvement of casting characteristics Improvement of corrosion resistance Improving machinability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The compressive strength of cast iron is __________that of its tensile strength. Less than None of these More than Equal to Less than None of these More than Equal to ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Recrystallization temperature can be lowered by Purification of metal Grain refinement All of these Working at lower temperature Purification of metal Grain refinement All of these Working at lower temperature ANSWER DOWNLOAD EXAMIANS APP
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