Engineering Materials Gun metal contains 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 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 High ductility Uniform strength in all directions Ability of hold protective coating High resistance to rusting and corrosion High ductility Uniform strength in all directions Ability of hold protective coating ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Foundry crucible is made of German silver Mild steel Graphite Lead German silver Mild steel Graphite Lead ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Perminvar alloy having constant permeability is an alloy of Nickel, copper and iron Copper, nickel and antimony Nickel, copper and zinc Iron, zinc and bismuth Nickel, copper and iron Copper, nickel and antimony Nickel, copper and zinc Iron, zinc and bismuth ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness 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 cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties ANSWER DOWNLOAD EXAMIANS APP
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