Engineering Materials In a hardening process, the hypo-eutectoid steel is Heated from 30°C to 50°C above the upper critical temperature and then cooled slowly in the furnace 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 in still air 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 slowly in the furnace 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 in still air Heated from 30°C to 50°C above the upper critical temperature and then cooled suddenly in a suitable cooling medium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Eutectoid reaction occurs at 1147°C 723°C 1493°C 600°C 1147°C 723°C 1493°C 600°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following is not the correct method of increasing fatigue limit? Nitriding of surface Cold working Shot peening Surface decarburisation Nitriding of surface Cold working Shot peening Surface decarburisation ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Perminvar alloy having constant permeability is an alloy of Iron, zinc and bismuth Nickel, copper and zinc Nickel, copper and iron Copper, nickel and antimony Iron, zinc and bismuth Nickel, copper and zinc Nickel, copper and iron Copper, nickel and antimony ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Steel containing ferrite and pearlite is Hard and tough Hard Soft Tough Hard and tough Hard Soft Tough ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The metal suitable for bearings subjected to heavy loads, is Phosphor bronze Monel metal Silicon bronze White metal Phosphor bronze Monel metal Silicon bronze White metal ANSWER DOWNLOAD EXAMIANS APP
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