Engineering Materials Chromium when added to steel _________ the tensile strength. Does not effect Decreases Increases None of these Does not effect Decreases Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Beryllium bronze contains 99% copper and 1% beryllium 80% copper and 20% beryllium 97.75% copper and 2.25% beryllium 60% copper and 40% beryllium 99% copper and 1% beryllium 80% copper and 20% beryllium 97.75% copper and 2.25% beryllium 60% copper and 40% beryllium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The ultimate tensile strength and yield strength of most of the metals, when temperature falls from 0 to 100°C will Decrease Remain same Increase First increase and then decrease Decrease Remain same Increase First increase and then decrease ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical temperature Is same for all steels Increases as the carbon content in steel increases Depends upon the rate of heating Decreases as the carbon content in steel increases Is same for all steels Increases as the carbon content in steel increases Depends upon the rate of heating Decreases as the carbon content in steel increases ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials According to Indian standard specifications, plain carbon steel designated by 40 C8 means that the carbon content is 0.6 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% 0.0004 0.35 to 0.45% 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 Cup and cone formation is characteristic for brittle materials Brittle fracture is always preceded by noise High temperature and low strain rates favour brittle fracture Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture Cup and cone formation is characteristic for brittle materials Brittle fracture is always preceded by noise High temperature and low strain rates favour brittle fracture ANSWER DOWNLOAD EXAMIANS APP
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