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 Removing the impurities like clay, sand etc. from the iron ore by washing with water Reducing the ore with carbon in the presence of a flux Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns All of these Removing the impurities like clay, sand etc. from the iron ore by washing with water Reducing the ore with carbon in the presence of a flux ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The compressive strength of cast iron is __________that of its tensile strength. Equal to None of these More than Less than Equal to None of these More than Less than ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials An eutectoid steel consists of Pearlite and ferrite Wholly austenite Pearlite and cementite Wholly pearlite Pearlite and ferrite Wholly austenite Pearlite and cementite Wholly pearlite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage of carbon in grey iron castings usually varies between 0.5 to 1% 5 to 7% 0.012 2.5 to 4.5% 0.5 to 1% 5 to 7% 0.012 2.5 to 4.5% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Ferromagnetic alpha iron exists in temperature range of 770 to 910°C 910 to 1440°C 1400 to 1539°C Below 723°C 770 to 910°C 910 to 1440°C 1400 to 1539°C Below 723°C ANSWER DOWNLOAD EXAMIANS APP
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