Engineering Materials The addition of which of the following improves machining of copper? Tin Sulphur Zinc Vanadium Tin Sulphur Zinc Vanadium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statements are true for annealing of steels? Cooling is done slowly and steadily Steels are heated to 500 to 700°C All of these Internal stresses are relieved Cooling is done slowly and steadily Steels are heated to 500 to 700°C All of these Internal stresses are relieved ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In full annealing, the hypo eutectoid steel is heated from 30°C to 50°C above the upper critical temperature and then cooled In still air Suddenly in a suitable cooling medium Any one of these Slowly in the furnace In still air Suddenly in a suitable cooling medium Any one of these Slowly in the furnace ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In spheroidising process, the steel is None of these Heated below the lower critical temperature and then cooled slowly Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C Heated up to the lower critical temperature and then cooled in still air None of these Heated below the lower critical temperature and then cooled slowly Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C Heated up to the lower critical temperature and then cooled in still air ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When the steel is normalized, its Ultimate tensile strength increases All of these Yield point increases Ductility decreases Ultimate tensile strength increases All of these Yield point increases Ductility decreases ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hematite iron ore contains iron about 0.3 0.45 0.7 0.55 0.3 0.45 0.7 0.55 ANSWER DOWNLOAD EXAMIANS APP
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