NACE CIP Level 1 Study Guide Questions
and Answers
1. Define Corrosion
ANS The deterioration of a substance, usually a metal from a reaction with its environment
2. What is passivation?
ANS A layer of oxides formed on the surface of a metal that provides corrosion protection.
3. What is an example of passivation?
ANS Stainless Steel
4. What are the elements of a corrosion cell?
ANS Anode, Cathode, Metallic Pathway, Electrolyte
5. Describe what happens at the anode.
ANS The metal dissolves into the electrolyte
6. What is the function of the electrolyte?
ANS Allows the passage of ions to connect the corrosion cell
7. What is the function of the metallic pathway?
ANS Allows the flow of electrons to connect the corrosion cell
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,8. What is the galvanic series?
ANS A listing of metals in order of reactivity (more or less noble) in seawater at 25 C
9. The general rules of galvanic corrosion are
ANS The less noble (or more reactive) metal when connected to a more noble (or less
reactive metal) will corrode preferentially
10. Name the five most important factors that affect the rate of
corrosion.
ANS Humidity, oxygen, chemical salts, pollutants, temperature
11. General corrosion is
ANS 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 cause catastrophic failures
12. Localized corrosion is
ANS Typically pitting and crevice corrosion. It is typically of the most concern as damage is
concentrated and loss of integrity or structural failure can result.
13. List some of the common tools/methods used for corrosion
control.
ANS Design, Inhibitors, Material Selection, Cathodic Protection, Protective Coatings, Splash Zone
Systems, Alteration of the Environment
14. How does NACE define the inspector's role?
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, ANS The inspector's role is that of a quality control
technician responsible for observing and reporting conformance or deviation from the project specification.
15. What is the inspector's responsibility when it comes to safety on
the project?-
ANS Safety enforcement is not the responsibility of the inspector; however, it is his/her responsibility to
report any issues that may affect the project.
16. Name some tests that may need to be conducted during
surface preparation and coating operations.
ANS Temperature, Relative Humidity, Dew Point, Anchor Profile, Surface Cleanliness
17. Name some of the documentation/reports that may be required
to be main- tained on a coatings project.
ANS Daily/weekly summary, material usage reports, manpower and equipment, non
conformance, and conformance
18. What are the most important characteristics of a good report?
ANS Objective, Accurate, and Detailed.
19. What is the inspector's primary responsibility and what should
the inspector not do as it pertains to the specification.
ANS The Inspector's primary responsibility as the inspector is to "enforce" specification.
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and Answers
1. Define Corrosion
ANS The deterioration of a substance, usually a metal from a reaction with its environment
2. What is passivation?
ANS A layer of oxides formed on the surface of a metal that provides corrosion protection.
3. What is an example of passivation?
ANS Stainless Steel
4. What are the elements of a corrosion cell?
ANS Anode, Cathode, Metallic Pathway, Electrolyte
5. Describe what happens at the anode.
ANS The metal dissolves into the electrolyte
6. What is the function of the electrolyte?
ANS Allows the passage of ions to connect the corrosion cell
7. What is the function of the metallic pathway?
ANS Allows the flow of electrons to connect the corrosion cell
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17
,8. What is the galvanic series?
ANS A listing of metals in order of reactivity (more or less noble) in seawater at 25 C
9. The general rules of galvanic corrosion are
ANS The less noble (or more reactive) metal when connected to a more noble (or less
reactive metal) will corrode preferentially
10. Name the five most important factors that affect the rate of
corrosion.
ANS Humidity, oxygen, chemical salts, pollutants, temperature
11. General corrosion is
ANS 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 cause catastrophic failures
12. Localized corrosion is
ANS Typically pitting and crevice corrosion. It is typically of the most concern as damage is
concentrated and loss of integrity or structural failure can result.
13. List some of the common tools/methods used for corrosion
control.
ANS Design, Inhibitors, Material Selection, Cathodic Protection, Protective Coatings, Splash Zone
Systems, Alteration of the Environment
14. How does NACE define the inspector's role?
2/
17
, ANS The inspector's role is that of a quality control
technician responsible for observing and reporting conformance or deviation from the project specification.
15. What is the inspector's responsibility when it comes to safety on
the project?-
ANS Safety enforcement is not the responsibility of the inspector; however, it is his/her responsibility to
report any issues that may affect the project.
16. Name some tests that may need to be conducted during
surface preparation and coating operations.
ANS Temperature, Relative Humidity, Dew Point, Anchor Profile, Surface Cleanliness
17. Name some of the documentation/reports that may be required
to be main- tained on a coatings project.
ANS Daily/weekly summary, material usage reports, manpower and equipment, non
conformance, and conformance
18. What are the most important characteristics of a good report?
ANS Objective, Accurate, and Detailed.
19. What is the inspector's primary responsibility and what should
the inspector not do as it pertains to the specification.
ANS The Inspector's primary responsibility as the inspector is to "enforce" specification.
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17
