Corrosion of Metals (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What causes corrosion of metals?
What causes corrosion of metals?
Chemical changes or electrical reactions
Which type of corrosion affects the entire exterior surface of a material evenly?
Which type of corrosion affects the entire exterior surface of a material evenly?
Uniform corrosion
Where does crevice corrosion occur?
Where does crevice corrosion occur?
In small, confined spaces
What two conditions are required for stress corrosion cracking?
What two conditions are required for stress corrosion cracking?
Mechanical stress and corrosive exposure
When does galvanic corrosion occur?
When does galvanic corrosion occur?
When two different metals contact in wet/salty areas
What causes the tarnishing of silver?
What causes the tarnishing of silver?
Sulfur compounds in the air
What colour is the patina formed on copper due to corrosion?
What colour is the patina formed on copper due to corrosion?
Green
What is corrosion testing?
What is corrosion testing?
Assessing corrosion resistance in controlled conditions
Which metals are examples of rust-resistant materials?
Which metals are examples of rust-resistant materials?
Stainless steel and aluminium
What are sacrificial anodes used for in corrosion prevention?
What are sacrificial anodes used for in corrosion prevention?
Cathodic protection systems
How does metal reactivity affect corrosion susceptibility?
How does metal reactivity affect corrosion susceptibility?
More reactive metals corrode faster
How does temperature affect corrosion rates?
How does temperature affect corrosion rates?
Higher temperatures increase rates