Engineering Materials A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as Heat treatment Recrystallization Allotropic change Precipitation Heat treatment Recrystallization Allotropic change Precipitation ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following element results in presence of free graphite in C.I.? Carbon Silicon Sulphur Manganese Carbon Silicon Sulphur Manganese ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Large forgings, crank shafts, axles normally contain carbon up to 0.05 to 0.20% 0.45 to 0.55% 0.55 to 1.0% 0.20 to 0.45% 0.05 to 0.20% 0.45 to 0.55% 0.55 to 1.0% 0.20 to 0.45% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Grey cast iron has All of these High tensile strength Carbon in the form of free graphite Low compressive strength All of these High tensile strength Carbon in the form of free graphite Low compressive strength ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel primarily depends on Heat treatment employed Percentage of alloying elements Percentage of carbon Shape of carbides and their distribution in iron Heat treatment employed Percentage of alloying elements Percentage of carbon Shape of carbides and their distribution in iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In spheroidising process, the steel is Heated below the lower critical temperature and then cooled slowly Heated up to the lower critical temperature and then cooled in still air Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C None of these Heated below the lower critical temperature and then cooled slowly Heated up to the lower critical temperature and then cooled in still air Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C None of these ANSWER DOWNLOAD EXAMIANS APP
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