solve

Question 15 (5 points) Select the best match for the three types of corrosion that occur in water mains. Pitting Corrosion Galvanic Corrosion Tuberculation Corrosion Occurs when two dissimilar metals come into contact and are exposed to a conductive environment; a potential exists between them, and current flows. This type of corrosion is the result of an electrochemical reaction when the flow of electric current itself is an essential part of the reaction. Refers to the formation of localized corrosion products scattered over the surface in the form of knob-like mounds. These mounds increase the roughness of the inside of the pipe, increasing resistance to water flow and decreasing the C factor of the pipe. Localized corrosion that is classified by this name when the diameter of the cavity at the metal surface is the same or less than the depth