NEW
Font size
WorksheetsModule 2 Corrosion
Total questions: 15
Worksheet time: 8mins
Which of the following statement is WRONG?
The process of losing the electron is called Oxidation
An oxidation reaction is often called a cathodic reaction
The process of receiving the electron is called Reduction
reduction reaction is often called a cathodic reaction
This is an example of
Differential Metalation Corrosion
Differential Aeration Corrosion
Which of the following is NOT a harmful effect of corrosion?
Bad appearance
Maintenance cost
Clean product
Plant shutdown
Which of the following statement is TRUE regarding Anodic and Cathodic reactions?
Both reactions take place simultaneously
Both reactions take place one after another
Both reactions must occur at a different rate
Both reactions must occur at a fast rate
What is corrosion?
The release of oxygen
Breakdown of a metal
Smaller the Ratio of Anodic to Cathodic area
Faster will be the rate of Corrosion
Slower will be the rate of Corrosion
Rusting is a special term, given to the corrosion metal is...
Au
Pt
Fe
Ag
What two things cause the Iron to rust?
Air and Oxygen
Oxygen and Water
Water and Carbon dioxide
Carbon dioxide and Air
What is the chemical name given to Rust?
Iron dioxide
Steel oxide
Iron oxide
Carbon dioxide
Nobel metals among the following...
gold and platinum
iron and copper
stainless steel and aluminum
tin and brass
Which of the following metals is very nonreactive and unlikely to corrode.
Copper
Potassium
sodium
Gold
Coating of Zn, Al and Cd on steel are _________ , because their electrode potentials are lower
e
Cathodic
Not affecting
Anodic
Expensive
Which of the following metals is not attacked by the environment?
Galvanizing is Coating of..
Iron over Zinc
Copper over Zinc
Zinc over Iron
Zinc over copper
Using a metal that does not corrode to cover a more corrosive metal is known as what?
Anodic protection
Inhibitor
Cathodic protection
Barrier
