Red Seal Plumbing Complete 2026 Practice Exam

Galvanic action refers to the corrosion process that occurs when two different types of metals are in contact with each other while exposed to a conductive solution, such as water. This process involves the transfer of electrons from one metal to another, leading to the gradual degradation and breakdown of the metal materials. Electrolysis, on the other hand, is the process of using an electrical current to drive a non-spontaneous chemical reaction, often used in industrial and scientific processes. While condensation and evaporation involve the physical change of a substance from liquid to gas, and osmosis is the movement of water through a semipermeable membrane, they are not directly related to galvanic action and do not serve as alternative terms for it. Therefore, the correct answer is C Electrolysis.