Engineering Materials

Monel metal contains_________________? A. 63 to 67% nickel and 30% copper B. 88% copper and 10% tin and rest zinc C. alloy of tin, lead and cadmium D. malleable iron and zinc E. none of the above…

DuraJomin contains___________________? A. 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe B. 92.5% aluminium, 40% copper, 2% nickel, and 1.5% Mg C. 10% aluminium and 90% copper D. 90% magnesium and 9% aluminium with some copper…

Phosphor bronze contains____________________? A. 0.5% of phosphorous B. 1% phosphorous C. 2.5% phosphorous D. 5% phosphorousE. none of the above

Delta metal is an alloy of__________________? A. copper, zinc and iron B. iron, nickel and copper C. iron, lead and tin D. iron, aluminium and magnesium E. copper, zinc and antimony

Which of the following alloys does not contain tin_________________? A. white metal B. solder admiralty C. fusible metal D. phosphor bronze E. gun metal

Addition of copper to aluminium results in_____________________? A. improvement of casting characteristics B. improvement of corrosion resistanceC. one of the best known age and precipitation-hardening systems D. improving…

Elinvar, an alloy used in precision instruments, hair springs for watches, etc. contains the following element as principal alloying element__________________? A. iron B. copper C. aluminium D. zincE. nickel…

Addition of lead and bismuth to aluminium results in_________________? A. improvement of casting characteristics B. improvement of corrosion resistance C. one of the best known age and precipitation-hardening systemsD. improving…

Constantant an alloy used in thermocouples is an alloy of __________________? A. copper and tin B. copper and zinc C. copper and ironD. copper and nickel E. copper and chromium

German silver contains_________________? A. 1% silver B. 2.5% silverC. 5% silver D. 10% silver E. 100% silver