Engineering Materials Gun metal contains 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc 70 - 78% copper and rest tin 90% copper and 10% tin 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc 70 - 78% copper and rest tin 90% copper and 10% tin ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is the false statement about wrought iron? It has Ability of hold protective coating Uniform strength in all directions High ductility High resistance to rusting and corrosion Ability of hold protective coating Uniform strength in all directions High ductility High resistance to rusting and corrosion ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Foundry crucible is made of Lead Graphite Mild steel German silver Lead Graphite Mild steel German silver ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Perminvar alloy having constant permeability is an alloy of Nickel, copper and zinc Nickel, copper and iron Copper, nickel and antimony Iron, zinc and bismuth Nickel, copper and zinc Nickel, copper and iron Copper, nickel and antimony Iron, zinc and bismuth ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability ANSWER DOWNLOAD EXAMIANS APP
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