NACE CP1 – EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
corrosion
The deterioration of a substance, usually a metal from a reaction with its environment
Passivation
A layer of oxides formed on the surface of a metal that provides corrosion protection.
the elements of a corrosion cell
Anode, cathode, metallic pathway, electrolyte
what happens at the anode
The metal dissolves into the electrolyte
the function of the metallic pathway
Allows the flow of electrons to connect the corrosion cell
galvanic series
A listing in order of reactivity ( more or less noble) in seawater 25c
The general rules of galvanic corrosion
The less noble (more reactive) metal when connected to a more noble (or less reactive
metal) will corrode preferentially.
the five most important factors that affect the rate of corrosion.
Humidity, oxygen, chemical salts, pollutants, temperature
General corrosion
COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
corrosion
The deterioration of a substance, usually a metal from a reaction with its environment
Passivation
A layer of oxides formed on the surface of a metal that provides corrosion protection.
the elements of a corrosion cell
Anode, cathode, metallic pathway, electrolyte
what happens at the anode
The metal dissolves into the electrolyte
the function of the metallic pathway
Allows the flow of electrons to connect the corrosion cell
galvanic series
A listing in order of reactivity ( more or less noble) in seawater 25c
The general rules of galvanic corrosion
The less noble (more reactive) metal when connected to a more noble (or less reactive
metal) will corrode preferentially.
the five most important factors that affect the rate of corrosion.
Humidity, oxygen, chemical salts, pollutants, temperature
General corrosion
