Question 11 of 30
What is cathodic protection?
A
Cathodes placed on the hull of a ship
B
Anodes placed in the stern of a ship
C
Protection of the hull of a ship
D
The prevention of corrosion by electrochemical techniques
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Answer & Explanation
The correct answer is Option D: The prevention of corrosion by electrochemical techniques.
Cathodic protection is an electrochemical technique used to control the corrosion of a metal surface (like a ship's hull) by making that surface the cathode of an electrochemical cell using sacrificial anodes.