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AMPP-CP2 Exam
Cathodic Protection Technician (NACE-
CP2-001)
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1.A technician is investigating corrosion on a buried steel pipeline. The inspection report shows that one
area of the pipeline has experienced metal loss while another area remains intact.
Which electrochemical process is occurring at the area experiencing metal loss?
A. Reduction at the cathode
B. Oxidation at the anode
C. Electron consumption at the electrolyte
D. Polarization caused by protective current
Answer: B
Explanation:
Metal loss occurs at the anodic area where oxidation takes place. During oxidation, iron atoms lose
electrons and enter the electrolyte as metal ions.
The cathodic area consumes electrons through reduction reactions and normally does not experience
metal loss.
Polarization occurs when current changes the electrode potential, such as during cathodic protection, but
it is not the cause of natural anodic metal dissolution.
2.A corrosion engineer explains that corrosion cannot continue unless electrons can move from one area
of a metallic structure to another.
Which component of the corrosion cell provides this electron path?
A. Electrolyte
B. Metallic connection
C. Reference electrode
D. Protective coating
Answer: B
Explanation:
Electrons move through the metallic path connecting anodic and cathodic areas.
The electrolyte provides ionic movement, not electron movement. A reference electrode is used for
potential measurements, and coatings are used to reduce exposure of the metal surface.
3.A buried pipeline has a small coating defect exposing bare steel.
Compared with a pipeline section with intact coating, why does this location usually require additional
cathodic protection current?
A. The coating defect creates additional exposed steel surface requiring protection
B. The coating defect prevents current from reaching the pipeline
C. The coating defect eliminates the corrosion cell
D. The coating defect changes the steel into a permanent cathode
Answer: A
Explanation:
Coating defects expose bare steel to the electrolyte. These exposed areas increase the surface area
that must be polarized by cathodic protection current.
A coating defect does not eliminate corrosion or automatically make the steel a cathode. Instead, it
increases CP current demand.
4.A steel pipeline is electrically connected to a magnesium anode and both are buried in the same soil
AMPP-CP2 Exam
Cathodic Protection Technician (NACE-
CP2-001)
https://www.passquestion.com/ampp-cp2.html
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Pass AMPP-CP2 Exam with PassQuestion AMPP-CP2 questions and
answers in the first attempt.
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, The safer , easier way to help you pass any IT exams.
1.A technician is investigating corrosion on a buried steel pipeline. The inspection report shows that one
area of the pipeline has experienced metal loss while another area remains intact.
Which electrochemical process is occurring at the area experiencing metal loss?
A. Reduction at the cathode
B. Oxidation at the anode
C. Electron consumption at the electrolyte
D. Polarization caused by protective current
Answer: B
Explanation:
Metal loss occurs at the anodic area where oxidation takes place. During oxidation, iron atoms lose
electrons and enter the electrolyte as metal ions.
The cathodic area consumes electrons through reduction reactions and normally does not experience
metal loss.
Polarization occurs when current changes the electrode potential, such as during cathodic protection, but
it is not the cause of natural anodic metal dissolution.
2.A corrosion engineer explains that corrosion cannot continue unless electrons can move from one area
of a metallic structure to another.
Which component of the corrosion cell provides this electron path?
A. Electrolyte
B. Metallic connection
C. Reference electrode
D. Protective coating
Answer: B
Explanation:
Electrons move through the metallic path connecting anodic and cathodic areas.
The electrolyte provides ionic movement, not electron movement. A reference electrode is used for
potential measurements, and coatings are used to reduce exposure of the metal surface.
3.A buried pipeline has a small coating defect exposing bare steel.
Compared with a pipeline section with intact coating, why does this location usually require additional
cathodic protection current?
A. The coating defect creates additional exposed steel surface requiring protection
B. The coating defect prevents current from reaching the pipeline
C. The coating defect eliminates the corrosion cell
D. The coating defect changes the steel into a permanent cathode
Answer: A
Explanation:
Coating defects expose bare steel to the electrolyte. These exposed areas increase the surface area
that must be polarized by cathodic protection current.
A coating defect does not eliminate corrosion or automatically make the steel a cathode. Instead, it
increases CP current demand.
4.A steel pipeline is electrically connected to a magnesium anode and both are buried in the same soil
