Why is stainless steel commonly used in kitchen utensils?

• It is easier to produce than other metals
• It is cheaper than other metals
• It is resistant to corrosion
• It is lightweight and strong

What is the advantage of using aluminium in the construction of aeroplanes?

• It is easier to produce than other metals
• It is cheaper than other metals
• It is resistant to corrosion
• It is lightweight and strong

What is the main difference between high-carbon steel and stainless steel?

• Stainless steel is more expensive
• High-carbon steel is more resistant to corrosion
• High-carbon steel contains more carbon
• Stainless steel is more malleable

Why are replacement joints often made of alloys?

• To make them more affordable
• To make them more resistant to wear and tear
• To make them more malleable
• To make them more lightweight

What is the main difference between mild steel and high-carbon steel?

• Mild steel contains more carbon
• High-carbon steel is more malleable
• Mild steel is more resistant to wear
• High-carbon steel is more brittle

What is the purpose of creating alloys?

• To increase the weight of the base metal
• To make the base metal more malleable
• To decrease the strength of the base metal
• To improve the properties of the base metal

How do the properties of alloys compare to those of pure metals?

• Alloys are softer and less resistant to corrosion
• Alloys are harder and more resistant to corrosion
• Alloys are lighter and more malleable
• Alloys are denser and more brittle

How is an alloy created?

• By melting the base metal and then adding other elements
• By heating the base metal to a high temperature
• By cooling the base metal and then adding other elements
• By mixing the base metal with water

What is the definition of an alloy?

• A substance which contains only one type of atom.
• A mixture of two or more elements, at least one of which is a metal
• A mixture of two or more non-metallic elements
• A pure metal with no other elements present

What is the main difference between mild steel and stainless steel?

• Stainless steel is more expensive
• Mild steel is more resistant to corrosion
• Stainless steel is more malleable
• Mild steel contains more carbon