NACE CIP Level 1 Study Guide with complete
Solutions
Define Corrosion - ANSWER The deterioration of a substance, usually a metal from a
reaction with its environment
What is Passivation? - ANSWER A layer of oxides formed on the surface of a metal that
provides corrosion protection.
What is an example of passivation? - ANSWER Stainless Steel
What are the elements of a corrosion cell? - ANSWER Anode, Cathode, Metallic
Pathway, Electrolyte
Describe what happens at the anode. - ANSWER The metal dissolves into the electrolyte
What is the function of the electrolyte? - ANSWER Allows the passage of ions to connect
the corrosion cell
What is the function of the metallic pathway? - ANSWER Allows the flow of electrons to
connect the corrosion cell
What is the galvanic series? - ANSWER A listing of metals in order of reactivity (more or
less noble) in seawater at 25 C
The general rules of galvanic corrosion are: - ANSWER The more reactive metal --when
connected to the less reactive (more noble) metal -- will corrode preferentially
, Name the five (5) most important factors that affect the *rate of corrosion.* - ANSWER
Humidity, oxygen, chemical salts, pollutants, temperature
General corrosion is: - ANSWER Results in a relatively *uniform* loss of material over
the entire surface, Results in a general thinning of the affected surface, Relatively easy
to inspect, Does not casue catastrophic failures
Localized corrosion is: - ANSWER At discrete/specific spots on the metal surface.
Typically pitting and crevice corrosion. The most concerning as damage is concentrated
and loss of integrity or structural failure can result.
List some of the common tools/methods used for *corrosion control*. - ANSWER
Design, Inhibitors, Material Selection, Cathodic Protection, Protective Coatings, Splash
Zone Systems, Alteration of the Environment
How does NACE define the Inspector's role? - ANSWER The inspector's role is that of a
*quality control technician* responsible for *observing and reporting conformance or
deviation from the project specification.*
What is the inspector's responsibility when it comes to safety on the project? - ANSWER
Safety enforcement is not the responsibility of the inspector; however, it is his/her
responsibility to report any issues that may affect the project.
Name some tests that may need to be conducted during surface preparation and
coating operations. - ANSWER Ambient Temperature, Relative Humidity & Dew Point,
Anchor Profile, Surface Cleanliness
Name some of the documentation/reports that may be required to be maintained on a
coatings project. - ANSWER Daily/weekly summary, material usage reports, manpower
and equipment, conformance, and Non-conformance
Solutions
Define Corrosion - ANSWER The deterioration of a substance, usually a metal from a
reaction with its environment
What is Passivation? - ANSWER A layer of oxides formed on the surface of a metal that
provides corrosion protection.
What is an example of passivation? - ANSWER Stainless Steel
What are the elements of a corrosion cell? - ANSWER Anode, Cathode, Metallic
Pathway, Electrolyte
Describe what happens at the anode. - ANSWER The metal dissolves into the electrolyte
What is the function of the electrolyte? - ANSWER Allows the passage of ions to connect
the corrosion cell
What is the function of the metallic pathway? - ANSWER Allows the flow of electrons to
connect the corrosion cell
What is the galvanic series? - ANSWER A listing of metals in order of reactivity (more or
less noble) in seawater at 25 C
The general rules of galvanic corrosion are: - ANSWER The more reactive metal --when
connected to the less reactive (more noble) metal -- will corrode preferentially
, Name the five (5) most important factors that affect the *rate of corrosion.* - ANSWER
Humidity, oxygen, chemical salts, pollutants, temperature
General corrosion is: - ANSWER Results in a relatively *uniform* loss of material over
the entire surface, Results in a general thinning of the affected surface, Relatively easy
to inspect, Does not casue catastrophic failures
Localized corrosion is: - ANSWER At discrete/specific spots on the metal surface.
Typically pitting and crevice corrosion. The most concerning as damage is concentrated
and loss of integrity or structural failure can result.
List some of the common tools/methods used for *corrosion control*. - ANSWER
Design, Inhibitors, Material Selection, Cathodic Protection, Protective Coatings, Splash
Zone Systems, Alteration of the Environment
How does NACE define the Inspector's role? - ANSWER The inspector's role is that of a
*quality control technician* responsible for *observing and reporting conformance or
deviation from the project specification.*
What is the inspector's responsibility when it comes to safety on the project? - ANSWER
Safety enforcement is not the responsibility of the inspector; however, it is his/her
responsibility to report any issues that may affect the project.
Name some tests that may need to be conducted during surface preparation and
coating operations. - ANSWER Ambient Temperature, Relative Humidity & Dew Point,
Anchor Profile, Surface Cleanliness
Name some of the documentation/reports that may be required to be maintained on a
coatings project. - ANSWER Daily/weekly summary, material usage reports, manpower
and equipment, conformance, and Non-conformance
