Engineering Materials Which of the following statements are true for annealing of steels? Internal stresses are relieved All of these Cooling is done slowly and steadily Steels are heated to 500 to 700°C Internal stresses are relieved All of these Cooling is done slowly and steadily Steels are heated to 500 to 700°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following display properties similar to that of steel? Whiteheart cast iron Blackheart cast iron Both (A) and (B) None of these Whiteheart cast iron Blackheart cast iron Both (A) and (B) None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Quenching is not necessary when hardening is done by Case hardening Flame hardening Nitriding Any one of these Case hardening Flame hardening Nitriding Any one of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following alloys does not have copper as one of the constituents? Delta metal Monel metal Constantan Nichrome Delta metal Monel metal Constantan Nichrome ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In process annealing, the hypo eutectoid steel is Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air Heated below or closes to the lower critical temperature and then cooled slowly Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium Heated from 30°C to 50°C above the upper critical temperature and then cooled in still air Heated below or closes to the lower critical temperature and then cooled slowly Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Corundum contains more than 95% Steel Al2O3 MgO SiO2 Steel Al2O3 MgO SiO2 ANSWER DOWNLOAD EXAMIANS APP
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