Engineering Materials Tungsten when added to steel __________ the critical temperature. Does not effect Raises Lowers None of these Does not effect Raises Lowers None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When elements like nickel, chromium, copper and molybdenum are added to the molten cast iron, it produces Malleable cast iron Alloy cast iron White cast iron Nodular cast iron Malleable cast iron Alloy cast iron White cast iron Nodular cast iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hardness of martensite is about RC 80 RC 65 RC 57 RC 48 RC 80 RC 65 RC 57 RC 48 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Points of arrest for iron correspond to There is nothing like points of arrest Stages at which properties do not change with increase in temperature Stages at which allotropic forms change Stages at which further heating does not increase temperature for some time There is nothing like points of arrest Stages at which properties do not change with increase in temperature Stages at which allotropic forms change Stages at which further heating does not increase temperature for some time ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statement is true about 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 Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Quenching is not necessary when hardening is done by Any one of these Case hardening Flame hardening Nitriding Any one of these Case hardening Flame hardening Nitriding ANSWER DOWNLOAD EXAMIANS APP
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