Engineering Materials Chromium in steel Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When low carbon steel is heated up to lower 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 Steel containing ferrite and pearlite is Tough Soft Hard Hard and tough Tough Soft Hard Hard and tough ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Hardness of upper bainite (acicular structure) is about RC 48 RC 65 RC 57 RC 80 RC 48 RC 65 RC 57 RC 80 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is false statement about case hardening? Case hardening is done by Cyaniding Nitriding Electroplating Induction hardening Cyaniding Nitriding Electroplating Induction hardening ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Bell metal contains 85 - 92% copper and rest tin with little lead and nickel 90% copper and 10% tin 70% copper and 30% zinc 70 - 75% copper and rest tin 85 - 92% copper and rest tin with little lead and nickel 90% copper and 10% tin 70% copper and 30% zinc 70 - 75% copper and rest tin ANSWER DOWNLOAD EXAMIANS APP
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