Engineering Materials Vanadium in high speed steels Forms very hard carbides and thus increases wear resistance Promotes decarburisation Promotes retention of austenite Provides high hot hardness Forms very hard carbides and thus increases wear resistance Promotes decarburisation Promotes retention of austenite Provides high hot hardness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The strength is the ability of a material to resist Externally applied forces with breakdown or yielding None of these Fracture due to high impact loads Deformation under stress Externally applied forces with breakdown or yielding None of these Fracture due to high impact loads Deformation under stress ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The molecules in a solid move In a haphazard way In a random manner In circular motion Back and forth like tiny pendulums In a haphazard way In a random manner In circular motion Back and forth like tiny pendulums ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to upper critical temperature The grain size first increases and then decreases very rapidly The grain size increases very rapidly There is no change in grain size The average grain size is a minimum The grain size first increases and then decreases very rapidly The grain size increases very rapidly There is no change in grain size The average grain size is a minimum ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The material in which the atoms are arranged chaotically, is called Crystalline material None of these Amorphous material Mesomorphous material Crystalline material None of these Amorphous material Mesomorphous material ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hardness of martensite is about RC 65 RC 80 RC 57 RC 48 RC 65 RC 80 RC 57 RC 48 ANSWER DOWNLOAD EXAMIANS APP
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