Match each corrosion prevention method to its function.

Creates a protective barrier
Prevents exposure to air and water

Greasing
Painting

Arrange the steps for rusting to occur in iron from start to finish.

Formation of rust
Oxidation of iron
Exposure to air and water

View Answers:

Which two conditions are necessary for iron to rust?

Air
Water
Light
Heat

[question number = 07.1] Explain sacrificial protection in terms of metal reactivity.

A more reactive metal corrodes in place of the protected metal.
The protected metal corrodes instead of the more reactive metal.
The metals are protected without any reaction occurring.
Only non-reactive metals can be used for sacrificial protection.

Use some of the following answers to fill in the blanks:
Zinc, iron, copper, bronze

Galvanising involves coating iron with , a more reactive metal, to prevent rust.

What is bronze made of?

Copper and tin
Copper and zinc
Iron and carbon
Silver and gold

Identify each alloy with its typical components.

Copper and zinc
Iron, chromium, and nickel

Brass
Stainless steel

Select all correct statements about high carbon steel.

It is strong
It is brittle
It is easily shaped
It is soft

Use some of the following answers to fill in the blanks:
Soda-lime, borosilicate, clay, ceramic

Most common glass is glass, which melts at lower temperatures than glass.

[question number = 07.5] What material is made by heating a mixture of sand, sodium carbonate, and limestone?

Soda-lime glass
Borosilicate glass
Pottery
Polymer

[question number = 07.3] Match each type of polymer with its property.

Melts when heated
Produced with a high-pressure process

Thermosoftening
Low density poly(ethene)

Identify the property of thermosetting polymers.

They do not melt when heated.
They melt when heated.
They are soft and flexible.
They are soluble in water.

[question number = 07.4] Use some of the following answers to fill in the blanks:
Aluminium, low density, high density, thermosetting

Aluminium alloys are valued for their properties, making them suitable for lightweight applications.

What is a composite material?

A material made of two or more distinct substances
A pure metal with no additives
A high-density metal alloy
A ceramic material used in construction

Select all correct statements about clay ceramics.

They are made by shaping wet clay and heating it.
They are primarily used to make metals.
They are often used in pottery and bricks.
They are lighter than polymers.

Using Materials Quiz

Good Luck!

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