Engineering Materials The hardness of steel increases if it contains Cementite Pearlite Martensite Austenite Cementite Pearlite Martensite Austenite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following represents the allotropic forms of iron? Alpha iron, gamma from and delta iron Alpha iron and beta iron Body centered cubic iron and face centered cubic iron Alpha iron, beta iron and gamma iron Alpha iron, gamma from and delta iron Alpha iron and beta iron Body centered cubic iron and face centered cubic iron Alpha iron, beta iron and gamma iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is said to be allotropic, if it has Any one of the above Fixed structure at all temperatures Atoms distributed in random pattern Different crystal structures at different temperatures Any one of the above Fixed structure at all temperatures Atoms distributed in random pattern Different crystal structures at different temperatures ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Amorphous material is one Which is not attacked by phosphorous Which emits fumes on melting In which atoms align themselves in a geometric pattern upon solidification In which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid Which is not attacked by phosphorous Which emits fumes on melting In which atoms align themselves in a geometric pattern upon solidification In which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Y-alloy contains 5 to 6% tin, 2 to 3% copper and rest aluminium 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium 5 to 6% tin, 2 to 3% copper and rest aluminium 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The strength is the ability of a material to resist Fracture due to high impact loads Deformation under stress None of these Externally applied forces with breakdown or yielding Fracture due to high impact loads Deformation under stress None of these Externally applied forces with breakdown or yielding ANSWER DOWNLOAD EXAMIANS APP
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