Alloys Quiz

What is the main component of stainless steel?

• Copper

• Iron

• Zinc

• Lead

Which of the following alloys is used in the manufacture of aircraft?

• Brass

• Bronze

• Duralumin

• Stainless steel

Bronze is an alloy consisting mainly of copper and:

• Tin

• Zinc

• Iron

• Aluminum

Why are alloys generally harder than pure metals?

• They have a higher melting point.

• Their atoms are arranged in a regular pattern.

• Different sized atoms distort the regular arrangement of atoms.

• They contain only non-metals.

Which alloy is used for making coins?

• Bronze

• Brass

• Steel

• Cupro-nickel

Which of the following is an alloy?

• Iron

• Copper

• Brass

• Aluminum

Which of the following elements is commonly added to iron to make stainless steel?

• Carbon

• Chromium

• Lead

• Zinc

Which of the following properties is NOT typically improved by alloying a metal?

• Hardness

• Melting point

• Electrical conductivity

• Corrosion resistance

What is the purpose of adding carbon to iron to make steel?

• To make it more ductile

• To increase its electrical conductivity

• To make it harder and stronger

• To lower its melting point

Which property of alloys makes them useful for constructing bridges and buildings?

• Electrical conductivity

• Hardness

• Ductility

• Melting point