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