1
AMPP CIP Level 1 – Basic Coating Inspector Theory
Study Guide 2026-2027
Practice Questions & Answers
QUESTION 1
Which of the following is the MOST common type of corrosion
encountered in industrial coating inspection?
A. Uniform corrosion
B. Pitting corrosion
C. Crevice corrosion
D. Galvanic corrosion
Correct Answer: A. Uniform corrosion
Rationale: Uniform corrosion (also called general corrosion) is the most
common type of corrosion. It results in relatively uniform loss of material over
the entire exposed surface and is relatively easy to inspect .
QUESTION 2
What is the primary difference between an anode and a cathode in an
electrochemical corrosion cell?
A. The anode is where reduction occurs; the cathode is where oxidation
occurs
B. The anode is where oxidation occurs; the cathode is where reduction
occurs
C. The anode is negatively charged; the cathode is positively charged
D. The anode is the metal that is protected; the cathode is the metal that
corrodes
Sure pass
,2
Correct Answer: B. The anode is where oxidation occurs; the cathode is
where reduction occurs
Rationale: In an electrochemical corrosion cell, oxidation occurs at the anode
(loss of electrons), and reduction occurs at the cathode (gain of electrons). The
anode is the site of corrosion .
QUESTION 3
What is the minimum number of components required for a corrosion cell
to function?
A. Two
B. Three
C. Four
D. Five
Correct Answer: C. Four
Rationale: A functioning corrosion cell requires four components: an anode, a
cathode, a metallic path (electrical connection), and an electrolyte (ionic
connection). All four must be present for corrosion to occur .
QUESTION 4
What type of corrosion occurs when two dissimilar metals are in contact in
the presence of an electrolyte?
A. Crevice corrosion
B. Pitting corrosion
C. Galvanic corrosion
D. Stress corrosion cracking
Correct Answer: C. Galvanic corrosion
Sure pass
,3
Rationale: Galvanic corrosion occurs when two dissimilar metals are in
electrical contact in the presence of an electrolyte. The more active metal
(anode) corrodes preferentially, protecting the more noble metal (cathode) .
QUESTION 5
What is the galvanic series?
A. A list of metals ranked by their resistance to corrosion
B. A list of metals ranked by their electrochemical potential in seawater
C. A list of metals ranked by their melting point
D. A list of metals ranked by their hardness
Correct Answer: B. A list of metals ranked by their electrochemical
potential in seawater
Rationale: The galvanic series ranks metals by their electrochemical potential
in seawater. Metals higher on the list are more anodic (active) and will
corrode preferentially when coupled with metals lower on the list (more
cathodic/noble) .
QUESTION 6
Which metal is most anodic (most active) in the galvanic series?
A. Stainless steel
B. Copper
C. Zinc
D. Carbon steel
Correct Answer: C. Zinc
Sure pass
, 4
Rationale: Zinc is one of the most active (anodic) metals in the galvanic
series. This is why zinc is commonly used as a sacrificial anode for cathodic
protection of steel structures .
QUESTION 7
What is stress corrosion cracking?
A. Corrosion caused by mechanical stress only
B. Cracking caused by the combined effects of tensile stress and corrosive
environment
C. Cracking caused by temperature changes only
D. Corrosion caused by galvanic effects
Correct Answer: B. Cracking caused by the combined effects of tensile
stress and corrosive environment
Rationale: Stress corrosion cracking (SCC) is a localized corrosion mechanism
caused by the combined effects of tensile stress (residual or applied) and a
corrosive environment. It can lead to catastrophic failure without significant
material loss .
QUESTION 8
What is microbiologically influenced corrosion (MIC)?
A. Corrosion caused by bacteria and other microorganisms
B. Corrosion caused by fungi only
C. Corrosion caused by viruses only
D. Corrosion caused by marine organisms only
Correct Answer: A. Corrosion caused by bacteria and other
microorganisms
Sure pass
AMPP CIP Level 1 – Basic Coating Inspector Theory
Study Guide 2026-2027
Practice Questions & Answers
QUESTION 1
Which of the following is the MOST common type of corrosion
encountered in industrial coating inspection?
A. Uniform corrosion
B. Pitting corrosion
C. Crevice corrosion
D. Galvanic corrosion
Correct Answer: A. Uniform corrosion
Rationale: Uniform corrosion (also called general corrosion) is the most
common type of corrosion. It results in relatively uniform loss of material over
the entire exposed surface and is relatively easy to inspect .
QUESTION 2
What is the primary difference between an anode and a cathode in an
electrochemical corrosion cell?
A. The anode is where reduction occurs; the cathode is where oxidation
occurs
B. The anode is where oxidation occurs; the cathode is where reduction
occurs
C. The anode is negatively charged; the cathode is positively charged
D. The anode is the metal that is protected; the cathode is the metal that
corrodes
Sure pass
,2
Correct Answer: B. The anode is where oxidation occurs; the cathode is
where reduction occurs
Rationale: In an electrochemical corrosion cell, oxidation occurs at the anode
(loss of electrons), and reduction occurs at the cathode (gain of electrons). The
anode is the site of corrosion .
QUESTION 3
What is the minimum number of components required for a corrosion cell
to function?
A. Two
B. Three
C. Four
D. Five
Correct Answer: C. Four
Rationale: A functioning corrosion cell requires four components: an anode, a
cathode, a metallic path (electrical connection), and an electrolyte (ionic
connection). All four must be present for corrosion to occur .
QUESTION 4
What type of corrosion occurs when two dissimilar metals are in contact in
the presence of an electrolyte?
A. Crevice corrosion
B. Pitting corrosion
C. Galvanic corrosion
D. Stress corrosion cracking
Correct Answer: C. Galvanic corrosion
Sure pass
,3
Rationale: Galvanic corrosion occurs when two dissimilar metals are in
electrical contact in the presence of an electrolyte. The more active metal
(anode) corrodes preferentially, protecting the more noble metal (cathode) .
QUESTION 5
What is the galvanic series?
A. A list of metals ranked by their resistance to corrosion
B. A list of metals ranked by their electrochemical potential in seawater
C. A list of metals ranked by their melting point
D. A list of metals ranked by their hardness
Correct Answer: B. A list of metals ranked by their electrochemical
potential in seawater
Rationale: The galvanic series ranks metals by their electrochemical potential
in seawater. Metals higher on the list are more anodic (active) and will
corrode preferentially when coupled with metals lower on the list (more
cathodic/noble) .
QUESTION 6
Which metal is most anodic (most active) in the galvanic series?
A. Stainless steel
B. Copper
C. Zinc
D. Carbon steel
Correct Answer: C. Zinc
Sure pass
, 4
Rationale: Zinc is one of the most active (anodic) metals in the galvanic
series. This is why zinc is commonly used as a sacrificial anode for cathodic
protection of steel structures .
QUESTION 7
What is stress corrosion cracking?
A. Corrosion caused by mechanical stress only
B. Cracking caused by the combined effects of tensile stress and corrosive
environment
C. Cracking caused by temperature changes only
D. Corrosion caused by galvanic effects
Correct Answer: B. Cracking caused by the combined effects of tensile
stress and corrosive environment
Rationale: Stress corrosion cracking (SCC) is a localized corrosion mechanism
caused by the combined effects of tensile stress (residual or applied) and a
corrosive environment. It can lead to catastrophic failure without significant
material loss .
QUESTION 8
What is microbiologically influenced corrosion (MIC)?
A. Corrosion caused by bacteria and other microorganisms
B. Corrosion caused by fungi only
C. Corrosion caused by viruses only
D. Corrosion caused by marine organisms only
Correct Answer: A. Corrosion caused by bacteria and other
microorganisms
Sure pass
