Engineering Materials

A. 70% copper and 30% zincB. 90% copper and 10% tinC. 85-92% copper and rest tin with little lead and nickelD. 70-75% copper and rest tinE. 70-75% copper and rest zinc and tin

A. grey cast iron, low carbon steel, wrought ironB. low carbon steel, grey cast iron, wrought ironC. wrought iron,low carbon steel, grey cast ironD. wrought iron, grey cast iron, low carbon steelE. grey…

A. 50 : 50B. 40 : 60C. 60 : 40D. 10 : 90E. 90 : 10

A. 50 : 50B. 40 : 60C. 60 : 40D. 20 : 80E. 80 : 20

A. nickel, copper and ironB. nickel, copper and zincC. copper, nickel and antimonyD. iron, zinc and bismuthE. antimony, copper and zinc

A. 63 to 67% nickel and 30% copperB. 88% copper and 10% tin and rest zincC. alloy of tin, lead and cadmiumD. malleable iron and zincE. none of the above

A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and FeB. 92.5% aluminium, 40% copper, 2% nickel, and 1.5% MgC. 10% aluminium and 90% copperD. 90% magnesium and 9% aluminium with some…

A. 0.5% of phosphorousB. 1% phosphorousC. 2.5% phosphorousD. 5% phosphorousE. none of the above

A. copper, zinc and ironB. iron, nickel and copperC. iron, lead and tinD. iron, aluminium and magnesiumE. copper, zinc and antimony