Alloy Metals Quiz (20 Questions)

What is an alloy?

• A pure metal

• A metal combined with other elements to improve its properties

• A metal mined from the earth

• A non-metal with a coating

Which of the following is an alloy?

• Copper

• Iron

• Brass

• Aluminium

What two metals are commonly combined to make brass?

• Iron and carbon

• Copper and tin

• Copper and zinc

• Aluminium and magnesium

What is an advantage of using alloys over pure metals?

• More expensive

• Poor corrosion resistance

• Improved strength and durability

• Weaker and more brittle

Why are alloys used in manufacturing car parts?

• They are biodegradable

• They are always magnetic

• They have improved strength and resistance to wear

• They are cheaper than plastic

What is stainless steel mostly made from?

• Aluminium and iron

• Iron, chromium, and nickel

• Copper and tin

• Zinc and lead

What property makes stainless steel useful in cutlery and sinks?

• It's very heavy

• It rusts quickly

• It resists corrosion

• It is soft and flexible

Which alloy is commonly used in aircraft manufacturing?

• Brass

• Duralumin

• Bronze

• Cast iron

What is a key advantage of duralumin?

• High density

• Very brittle

• Lightweight and strong

• Melts at room temperature

Which of the following is a disadvantage of using alloys?

• They are always magnetic

• They can be more difficult to recycle

• They rust easily

• They conduct electricity poorly