Engineering Materials When low carbon steel is heated up to lower critical temperature The average grain size is a minimum The grain size increases very rapidly The grain size first increases and then decreases very rapidly There is no change in grain size The average grain size is a minimum The grain size increases very rapidly The grain size first increases and then decreases very rapidly There is no change in grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statement is true about brittle fracture? Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture High temperature and low strain rates favour brittle fracture Brittle fracture is always preceded by noise Cup and cone formation is characteristic for brittle materials Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture High temperature and low strain rates favour brittle fracture Brittle fracture is always preceded by noise Cup and cone formation is characteristic for brittle materials ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The ability of a material to resist softening at high temperature is known as Hot tempering Fatigue Creep Hot hardness Hot tempering Fatigue Creep Hot hardness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Specify the sequence correctly Grain growth, recrystallization, stress relief Stress relief, grain growth, recrystallization Grain growth, stress relief, recrystallization Stress relief, recrystallization, grain growth Grain growth, recrystallization, stress relief Stress relief, grain growth, recrystallization Grain growth, stress relief, recrystallization Stress relief, recrystallization, grain growth ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following has highest specific strength of all structural materials? Magnetic steel alloys Chromium alloys Magnesium alloys Titanium alloys Magnetic steel alloys Chromium alloys Magnesium alloys Titanium alloys ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cast iron is manufactured in Bessemer converter Cupola Blast furnace Open hearth furnace Bessemer converter Cupola Blast furnace Open hearth furnace ANSWER DOWNLOAD EXAMIANS APP
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