Quiz on Non-Ferrous Metals in Engineering

Which of the following non-ferrous metals is used for electrical systems, motor windings and is alloyed with zinc to produce brass?

• Copper

• Bronze

• Aluminium

• Chromium

What is the preferred alternative manufacturing process for non-ferrous metal components that do not have the size, strength and grain flow property for forging?

• Welding

• Brazing

• Heat treatment

• Alloying

What is an alloy?

• A) A pure metal element

• B) A combination of two or more non-metals

• C) A combination of two or more metals, or metals and non-metals, which form a solid solution

• D) A type of metal ore

What metals form bronze?

• A) Tin and zinc

• B) Tin and lead

• C) Tin and copper

• D) Copper and zinc

What is the purpose of annealing?

• A) To increase the electrical conductivity of metals

• B) To remove hardness and stresses caused by forming processes

• C) To decrease the melting point of metals

• D) To enhance the magnetic properties of metals

What is the name of the common aluminium alloy that consists of 96% Al and 4% Cu?

(a)  

What is the process called that is required to produce a tough, hard and long-wearing aluminium alloy?

• Cold working

• Solid solution hardening, or age hardening

• Quenching

• Annealing

What is the result of over-aging in the microstructure of aluminum alloys at point D?

• Finer 'dotted' precipitate

• Solid solution structure

• Larger and less evenly shaped particles

• Increased tensile strength

Which series of aluminum alloys is noted for its application in aircraft construction due to high tensile strength and mechanical property?

• 1000 series

• 2000 series

• 6000 series

• 7000 series

What processes can change a metal's structure?

• Annealing and solid solution hardening

• Freezing and melting

• Cutting and welding

• Painting and coating