CORROSION QUIZ

Which of the following metals is most susceptible to corrosion?

• Gold

• Iron

• Aluminium

• Titanium

Which method is commonly used to prevent corrosion?

• Painting

• Galvanisation

• Anodising

• All of the above

Saltwater can accelerate the corrosion process

• True

• False

Corrosion is a reversible process.

• True

• False

What does the Bedworth ratio compare?

• The density of metals

• The thickness of oxide layer to volume of metal

• The weight of metal before and after corrosion

• Conductivity of metal

A Bedworth ratio less than 1 indicates a protective oxide layer.

• True

• False

Which of the following factors increases the risk of galvanic corrosion?

• Using metals with similar electrochemical potential

• Increasing the distance between two metals

• Presence of electrolyte

• Ensuring both metals are coated

What primarily causes soil corrosion?

• Chemical reaction between metals and moisture in soil

• Physical abrasion from soil particles

• High temperature in the soil

• Presence of sunlight

Which metal is prone to pitting corrosion

• Titanium

• Stainless steel

• Aluminium

• All of the above

What factor increases pitting corrosion risk

• Decreasing chloride ion concentration

• Increasing temp

• Increasing ph levels