NACE CIP Actual Questions and Correct Answers
Q1
Define Corrosion
Answer: The deterioration of a substance, usually a metal from a reaction with its
environment
Q2
What is passivation?
Answer: A layer of oxides formed on the surface of a metal that provides corrosion
protection.
Q3
What is an example of passivation?
Answer: Stainless Steel
Q4
What are the elements of a corrosion cell?
Answer: Anode, Cathode, Metallic Pathway, Electrolyte
Q5
Describe what happens at the anode.
Answer: The metal dissolves into the electrolyte
Q6
What is the function of the electrolyte?
Answer: Allows the passage of ions to connect the corrosion cell
Q7
What is the function of the metallic pathway?
Answer: Allows the flow of electrons to connect the corrosion cell
, Q8
What is the galvanic series?
Answer: A listing of metals in order of reactivity (more or less noble) in seawater at 25
C
Q9
The general rules of galvanic corrosion are:
Answer: The less noble (or more reactive) metal when connected to a more noble (or
less reactive metal) will corrode preferentially
Q10
Name the five most important factors that affect the rate of corrosion.
Answer: Humidity, oxygen, chemical salts, pollutants, temperature
Q11
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
Q12
Localized corrosion is:
Answer: 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.
Q13
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
Q14
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.
Q1
Define Corrosion
Answer: The deterioration of a substance, usually a metal from a reaction with its
environment
Q2
What is passivation?
Answer: A layer of oxides formed on the surface of a metal that provides corrosion
protection.
Q3
What is an example of passivation?
Answer: Stainless Steel
Q4
What are the elements of a corrosion cell?
Answer: Anode, Cathode, Metallic Pathway, Electrolyte
Q5
Describe what happens at the anode.
Answer: The metal dissolves into the electrolyte
Q6
What is the function of the electrolyte?
Answer: Allows the passage of ions to connect the corrosion cell
Q7
What is the function of the metallic pathway?
Answer: Allows the flow of electrons to connect the corrosion cell
, Q8
What is the galvanic series?
Answer: A listing of metals in order of reactivity (more or less noble) in seawater at 25
C
Q9
The general rules of galvanic corrosion are:
Answer: The less noble (or more reactive) metal when connected to a more noble (or
less reactive metal) will corrode preferentially
Q10
Name the five most important factors that affect the rate of corrosion.
Answer: Humidity, oxygen, chemical salts, pollutants, temperature
Q11
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
Q12
Localized corrosion is:
Answer: 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.
Q13
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
Q14
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.
