Engineering Materials When low carbon steel is heated up to upper critical temperature The grain size increases very rapidly The grain size first increases and then decreases very rapidly The average grain size is a minimum There is no change in grain size The grain size increases very rapidly The grain size first increases and then decreases very rapidly The average grain size is a minimum There is no change in grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about tempering? Tempering is done to Improve toughness Release stresses Improve ductility Improve machinability Improve toughness Release stresses Improve ductility Improve machinability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following property is desirable for materials used in tools and machines? Ductility Malleability Plasticity Elasticity Ductility Malleability Plasticity Elasticity ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following is not the correct method of increasing fatigue limit? Shot peening Surface decarburisation Cold working Nitriding of surface Shot peening Surface decarburisation Cold working Nitriding of surface ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloy used for making electrical resistances and heating elements is Nichrome Magnin Invar Elinvar Nichrome Magnin Invar Elinvar ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The following element can't impart high strength at elevated temperature Nickel Manganese Silicon Magnesium Nickel Manganese Silicon Magnesium ANSWER DOWNLOAD EXAMIANS APP
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