Engineering Materials Hardness of upper bainite (acicular structure) is about RC 80 RC 57 RC 65 RC 48 RC 80 RC 57 RC 65 RC 48 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Pick up wrong statement about wrought iron It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling It contains carbon of the order of 0 to 0.25% It melts at 1535°C It is very soft and ductile It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling It contains carbon of the order of 0 to 0.25% It melts at 1535°C It is very soft and ductile ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Amorphous material is one Which is not attacked by phosphorous 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 emits fumes on melting Which is not attacked by phosphorous 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 emits fumes on melting ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following represents the allotropic forms of iron? Alpha iron and beta iron Body centered cubic iron and face centered cubic iron Alpha iron, gamma from and delta iron Alpha iron, beta iron and gamma iron Alpha iron and beta iron Body centered cubic iron and face centered cubic iron Alpha iron, gamma from and delta iron Alpha iron, beta iron and gamma iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The defect which takes place due to imperfect packing of atoms during crystallization is known as None of these Line defect Point defect Surface defect None of these Line defect Point defect Surface defect ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Y-alloy contains 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese 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 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, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese 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 5 to 6% tin, 2 to 3% copper and rest aluminium ANSWER DOWNLOAD EXAMIANS APP
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