Engineering Materials Iron ore is usually found in the form of Carbonates All of these Sulphides Oxides Carbonates All of these Sulphides Oxides ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The crystal structure of brass is C.C. H.C.P. F.C.C. Orthorhombic crystalline structure C.C. H.C.P. F.C.C. Orthorhombic crystalline structure ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following constituents of steels is softest and least strong? Cementite Austenite Ferrite Pearlite Cementite Austenite Ferrite Pearlite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical point for all steels is 600°C 700°C 913°C 723°C 600°C 700°C 913°C 723°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following elements does not impart hardness to steel? Silicon Chromium Copper Nickel Silicon Chromium Copper Nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Vanadium in high speed steels Promotes decarburisation Provides high hot hardness Promotes retention of austenite Forms very hard carbides and thus increases wear resistance Promotes decarburisation Provides high hot hardness Promotes retention of austenite Forms very hard carbides and thus increases wear resistance ANSWER DOWNLOAD EXAMIANS APP
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