Engineering Materials Gun metal contains 70 - 78% copper and rest tin 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc 90% copper and 10% tin 70 - 78% copper and rest tin 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc 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 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Foundry crucible is made of Mild steel Lead Graphite German silver Mild steel Lead Graphite German silver ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Perminvar alloy having constant permeability is an alloy of Iron, zinc and bismuth 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel 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 Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties ANSWER DOWNLOAD EXAMIANS APP
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