NACE CIP Level 1 Exam – AMPP/NACE Coating
Inspector Program – 2026/2027 Edition – Verified
Q&A
Section 1: Corrosion Fundamentals
Question 1
How is the process of steel corrosion ALWAYS described?
A) A chemical oxidation reaction
B) An electrochemical process
C) A mechanical wearing process
D) A thermal degradation process
Correct Answer: B
Rationale: Steel corrosion is always described as an electrochemical process
that requires four elements to form a corrosion cell: an anode, a cathode, a
metallic pathway, and an electrolyte. While chemical reactions are involved, the
fundamental mechanism is electrochemical in nature.
Question 2
What are the four essential elements required for a corrosion cell to function?
A) Anode, Cathode, Resistor, Electrolyte
B) Anode, Cathode, Metallic Pathway, Electrolyte
C) Anode, Cathode, Insulator, Moisture
D) Positive terminal, Negative terminal, Wire, Salt water
Correct Answer: B
Rationale: A complete corrosion cell requires four elements: an anode (where
oxidation occurs and metal dissolves), a cathode (where reduction occurs), a
metallic pathway (allowing electron flow), and an electrolyte (allowing ionic
current flow).
,Question 3
What is the function of the electrolyte in a corrosion cell?
A) To allow the flow of electrons
B) To provide a barrier against corrosion
C) To allow the passage of ions to connect the corrosion cell
D) To dissolve the cathode material
Correct Answer: C
Rationale: The electrolyte allows the passage of ions to connect the corrosion
cell. This ionic current completes the electrical circuit, enabling the
electrochemical reactions to proceed.
Question 4
What is the function of the metallic pathway in a corrosion cell?
A) To allow the passage of ions
B) To allow the flow of electrons to connect the corrosion cell
C) To provide the corrosive environment
D) To serve as the location where metal dissolves
Correct Answer: B
Rationale: The metallic pathway allows the flow of electrons to connect the
corrosion cell. Electrons travel from the anode (where they are generated by
oxidation) through the metallic pathway to the cathode.
Question 5
Based on the Galvanic Series presented in the NACE CIP Level 1 Manual, which
three materials can be used effectively as galvanic anodes for carbon steel?
A) Copper, Brass, Bronze
B) Lead, Tin, Monel
,C) Zinc, Aluminum, Magnesium
D) Graphite, Platinum, Titanium
Correct Answer: C
Rationale: Zinc, aluminum, and magnesium are anodic (less noble) relative to
carbon steel, meaning they will corrode preferentially and protect the steel
substrate. The other materials listed are more noble (cathodic) than steel and
would not provide sacrificial protection.
Question 6
A decrease in ambient temperature will generally cause the corrosion rate to:
A) Increase
B) Decrease
C) Remain the same
D) Fluctuate randomly
Correct Answer: B
Rationale: Corrosion is an electrochemical reaction. Lower temperatures
slow down the kinetic energy of the reactants and the rate of the chemical
reaction, thereby decreasing the corrosion rate.
Question 7
Corrosion occurring uniformly across a surface is called:
A) Pitting corrosion
B) Galvanic corrosion
C) General corrosion
D) Crevice corrosion
Correct Answer: C
Rationale: General corrosion results in a relatively uniform loss of material
over the entire surface, causing general thinning. It is relatively easy to inspect
and does not typically cause catastrophic failures.
, Question 8
Which form of corrosion is typically of the MOST concern for structural integrity?
A) General corrosion
B) Localized corrosion (pitting and crevice corrosion)
C) Atmospheric corrosion
D) Erosion corrosion
Correct Answer: B
Rationale: Localized corrosion—typically pitting and crevice corrosion—is of
the most concern because damage is concentrated and loss of integrity or
structural failure can result. Unlike general corrosion, localized attack can
penetrate through the material thickness in a small area.
Question 9
What is passivation?
A) The complete removal of all corrosion products
B) A layer of oxides formed on the surface of a metal that provides corrosion
protection
C) The process of applying a protective coating
D) The intentional removal of the anode from a corrosion cell
Correct Answer: B
Rationale: Passivation is a layer of oxides formed on the surface of a metal
that provides corrosion protection. A common example is stainless steel, where a
chromium oxide layer forms naturally and protects the underlying metal.
Question 10
Which of the following is NOT one of the five most important factors that affect
the rate of corrosion?
Inspector Program – 2026/2027 Edition – Verified
Q&A
Section 1: Corrosion Fundamentals
Question 1
How is the process of steel corrosion ALWAYS described?
A) A chemical oxidation reaction
B) An electrochemical process
C) A mechanical wearing process
D) A thermal degradation process
Correct Answer: B
Rationale: Steel corrosion is always described as an electrochemical process
that requires four elements to form a corrosion cell: an anode, a cathode, a
metallic pathway, and an electrolyte. While chemical reactions are involved, the
fundamental mechanism is electrochemical in nature.
Question 2
What are the four essential elements required for a corrosion cell to function?
A) Anode, Cathode, Resistor, Electrolyte
B) Anode, Cathode, Metallic Pathway, Electrolyte
C) Anode, Cathode, Insulator, Moisture
D) Positive terminal, Negative terminal, Wire, Salt water
Correct Answer: B
Rationale: A complete corrosion cell requires four elements: an anode (where
oxidation occurs and metal dissolves), a cathode (where reduction occurs), a
metallic pathway (allowing electron flow), and an electrolyte (allowing ionic
current flow).
,Question 3
What is the function of the electrolyte in a corrosion cell?
A) To allow the flow of electrons
B) To provide a barrier against corrosion
C) To allow the passage of ions to connect the corrosion cell
D) To dissolve the cathode material
Correct Answer: C
Rationale: The electrolyte allows the passage of ions to connect the corrosion
cell. This ionic current completes the electrical circuit, enabling the
electrochemical reactions to proceed.
Question 4
What is the function of the metallic pathway in a corrosion cell?
A) To allow the passage of ions
B) To allow the flow of electrons to connect the corrosion cell
C) To provide the corrosive environment
D) To serve as the location where metal dissolves
Correct Answer: B
Rationale: The metallic pathway allows the flow of electrons to connect the
corrosion cell. Electrons travel from the anode (where they are generated by
oxidation) through the metallic pathway to the cathode.
Question 5
Based on the Galvanic Series presented in the NACE CIP Level 1 Manual, which
three materials can be used effectively as galvanic anodes for carbon steel?
A) Copper, Brass, Bronze
B) Lead, Tin, Monel
,C) Zinc, Aluminum, Magnesium
D) Graphite, Platinum, Titanium
Correct Answer: C
Rationale: Zinc, aluminum, and magnesium are anodic (less noble) relative to
carbon steel, meaning they will corrode preferentially and protect the steel
substrate. The other materials listed are more noble (cathodic) than steel and
would not provide sacrificial protection.
Question 6
A decrease in ambient temperature will generally cause the corrosion rate to:
A) Increase
B) Decrease
C) Remain the same
D) Fluctuate randomly
Correct Answer: B
Rationale: Corrosion is an electrochemical reaction. Lower temperatures
slow down the kinetic energy of the reactants and the rate of the chemical
reaction, thereby decreasing the corrosion rate.
Question 7
Corrosion occurring uniformly across a surface is called:
A) Pitting corrosion
B) Galvanic corrosion
C) General corrosion
D) Crevice corrosion
Correct Answer: C
Rationale: General corrosion results in a relatively uniform loss of material
over the entire surface, causing general thinning. It is relatively easy to inspect
and does not typically cause catastrophic failures.
, Question 8
Which form of corrosion is typically of the MOST concern for structural integrity?
A) General corrosion
B) Localized corrosion (pitting and crevice corrosion)
C) Atmospheric corrosion
D) Erosion corrosion
Correct Answer: B
Rationale: Localized corrosion—typically pitting and crevice corrosion—is of
the most concern because damage is concentrated and loss of integrity or
structural failure can result. Unlike general corrosion, localized attack can
penetrate through the material thickness in a small area.
Question 9
What is passivation?
A) The complete removal of all corrosion products
B) A layer of oxides formed on the surface of a metal that provides corrosion
protection
C) The process of applying a protective coating
D) The intentional removal of the anode from a corrosion cell
Correct Answer: B
Rationale: Passivation is a layer of oxides formed on the surface of a metal
that provides corrosion protection. A common example is stainless steel, where a
chromium oxide layer forms naturally and protects the underlying metal.
Question 10
Which of the following is NOT one of the five most important factors that affect
the rate of corrosion?
