Engineering Materials Nodular cast iron is produced by adding ________ to the molten cast iron. Chromium Copper Magnesium Nickel Chromium Copper Magnesium Nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In spheroidising process, the steel is None of these 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 Heated below the lower critical temperature and then cooled slowly None of these 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 Heated below the lower critical temperature and then cooled slowly ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The toughness of a material __________ when it is heated. Increases Decreases None of these Remain same Increases Decreases None of these Remain same ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about normalizing? Normalizing is done to Improve mechanical properties Induce stresses Refine grain structure Reduce segregation in casting Improve mechanical properties Induce stresses Refine grain structure Reduce segregation in casting ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten when added to steel __________ the critical temperature. Lowers Raises Does not effect None of these Lowers Raises Does not effect None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Induction hardening is the process of Increasing hardness throughout Hardening surface of work-piece to obtain hard and wear resistant surface Heating and cooling rapidly Inducing hardness by continuous process Increasing hardness throughout Hardening surface of work-piece to obtain hard and wear resistant surface Heating and cooling rapidly Inducing hardness by continuous process ANSWER DOWNLOAD EXAMIANS APP
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