Understanding Metals and Their Properties

What is the primary characteristic of ferrous metals?

• They contain iron.

• They are non-magnetic.

• They are lightweight.

• They do not rust.

Which of the following is a non-ferrous metal?

• Cast iron

• Mild steel

• Aluminium

• High carbon steel

What property of metals describes their ability to be stretched into a wire?

• Hardness

• Ductility

• Malleability

• Toughness

Which of the following metals is known for its high tensile strength?

• Copper

• Mild steel

• Brass

• Bronze

What is the purpose of applying a protective finish to metals?

• To increase weight

• To improve conductivity

• To enhance aesthetic appeal and prevent corrosion

• To make them magnetic

Which of the following is an alloy?

• Copper

• Brass

• Aluminium

• Cast iron

Jacob is selecting a metal for his project that can be hammered into thin sheets without breaking. What property should he consider?

• Malleability

• Elasticity

• Brittleness

• Conductivity

Which form is NOT a common way metals are sold?

• Sheet

• Liquid

• Rod

• Tube

Which metal is most prone to oxidation and may need a coating to prevent it?

• Aluminium

• Copper

• Stainless steel

• Brass

What is the main reason alloys are created?

• To reduce cost

• To change properties or appearance

• To increase weight

• To make them magnetic