Engineering Materials A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as Heat treatment Precipitation Allotropic change Recrystallization Heat treatment Precipitation Allotropic change Recrystallization ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Iron-carbon alloys containing 1.7 to 4.3% carbon are known as Eutectic cast irons Hypoeutectic cast irons None of these Hypereutectic cast irons Eutectic cast irons Hypoeutectic cast irons None of these Hypereutectic cast irons ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Induction hardening is the process of Heating and cooling rapidly Increasing hardness throughout Hardening surface of work-piece to obtain hard and wear resistant surface Inducing hardness by continuous process Heating and cooling rapidly Increasing hardness throughout Hardening surface of work-piece to obtain hard and wear resistant surface Inducing hardness by continuous process ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials There are fourteen atoms in a unit cell of Close packed hexagonal space lattice Body centered cubic space lattice None of these Face centered cubic space lattice Close packed hexagonal space lattice Body centered cubic space lattice None of these Face centered cubic space lattice ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following statement is true about brittle fracture? Brittle fracture is always preceded by noise Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture Cup and cone formation is characteristic for brittle materials High temperature and low strain rates favour brittle fracture Brittle fracture is always preceded by noise Many metals with hexagonal close packed (H.C.P) crystal structure commonly show brittle fracture Cup and cone formation is characteristic for brittle materials High temperature and low strain rates favour brittle fracture ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Super conduction by metals is observed in the temperature range of Around 100°C Around 0°C Below 10°K Above 100°K Around 100°C Around 0°C Below 10°K Above 100°K ANSWER DOWNLOAD EXAMIANS APP
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