Engineering Materials When low carbon steel is heated up to lower critical temperature The grain size increases very rapidly There is no change in grain size The grain size first increases and then decreases very rapidly The average grain size is a minimum The grain size increases very rapidly There is no change in grain size The grain size first increases and then decreases very rapidly The average grain size is a minimum ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials According to Indian standard specifications, plain carbon steel designated by 40 C8 means that the carbon content is 0.0004 0.35 to 0.45% 0.6 to 0.8% 0.4 to 0.6% 0.0004 0.35 to 0.45% 0.6 to 0.8% 0.4 to 0.6% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following has highest specific strength of all structural materials? Magnetic steel alloys Magnesium alloys Chromium alloys Titanium alloys Magnetic steel alloys Magnesium alloys Chromium alloys Titanium alloys ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cementite consist of 13% carbon and 87% ferrite 13% cementite and 87% ferrite 13% ferrite and 87% cementite 6.67% carbon and 93.33% iron 13% carbon and 87% ferrite 13% cementite and 87% ferrite 13% ferrite and 87% cementite 6.67% carbon and 93.33% iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cast iron is manufactured in Open hearth furnace Cupola Blast furnace Bessemer converter Open hearth furnace Cupola Blast furnace Bessemer converter ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium when added to steel _________ the tensile strength. Does not effect None of these Decreases Increases Does not effect None of these Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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