Engineering Materials Which is false statement about tempering? Tempering is done to Improve machinability Release stresses Improve toughness Improve ductility Improve machinability Release stresses Improve toughness Improve ductility ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to upper critical temperature The grain size increases very rapidly The average grain size is a minimum The grain size first increases and then decreases very rapidly There is no change in grain size The grain size increases very rapidly The average grain size is a minimum The grain size first increases and then decreases very rapidly There is no change in grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Amorphous material is one Which is not attacked by phosphorous Which emits fumes on melting In which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid In which atoms align themselves in a geometric pattern upon solidification Which is not attacked by phosphorous Which emits fumes on melting In which there is no definite atomic structure and atoms exist in a random pattern just as in a liquid In which atoms align themselves in a geometric pattern upon solidification ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The heat treatment process used for softening hardened steel is Normalizing Tempering Annealing Carburising Normalizing Tempering Annealing Carburising ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Iron-carbon alloys containing 1.7 to 4.3% carbon are known as Hypoeutectic cast irons Hypereutectic cast irons None of these Eutectic cast irons Hypoeutectic cast irons Hypereutectic cast irons None of these Eutectic cast irons ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The defect which takes place due to imperfect packing of atoms during crystallization is known as Line defect Point defect Surface defect None of these Line defect Point defect Surface defect None of these ANSWER DOWNLOAD EXAMIANS APP
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