CIP LEVEL 1 NACE-CIP1-001
PRACTICE TEST QUESTIONS
AND ANSWER 2025
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
, 1. Corrosion
o The deterioration of a material, usually a metal, due to a
reaction with its environment.
2. Passivation
o The reduction of the anodic reaction rate of an electrode
involved in corrosion.
3. What are the elements of a corrosion cell?
o Anode, cathode, return path, and electrolyte.
4. Describe what happens at the anode.
o The anode is the part of the metal that corrodes (dissolves in
the electrolyte), forming positively charged ions that migrate
to the cathode. Oxidation at the anode requires a
complementary reaction at the cathode.
5. What is the function of the electrolyte?
o A chemical substance containing ions that migrate in an
electric field, enabling the electrochemical reactions in the
corrosion process.
6. What is the function of the metallic pathway (return path)?
o It connects the anode and cathode, allowing the passage of
electrons generated at the anode to the cathode.
7. What is the galvanic series?
o A list of metals and alloys arranged according to their
corrosion potentials in a given environment.
8. What are the general rules of galvanic corrosion?
o When dissimilar metals are connected, the more active
(anodic) metal corrodes more rapidly, while the more noble
(cathodic) metal corrodes less. As the potential difference
increases, the rate of galvanic corrosion also increases.
9. Name at least five factors that affect the rate of corrosion.
PRACTICE TEST QUESTIONS
AND ANSWER 2025
[Document subtitle]
[DATE]
[COMPANY NAME]
[Company address]
, 1. Corrosion
o The deterioration of a material, usually a metal, due to a
reaction with its environment.
2. Passivation
o The reduction of the anodic reaction rate of an electrode
involved in corrosion.
3. What are the elements of a corrosion cell?
o Anode, cathode, return path, and electrolyte.
4. Describe what happens at the anode.
o The anode is the part of the metal that corrodes (dissolves in
the electrolyte), forming positively charged ions that migrate
to the cathode. Oxidation at the anode requires a
complementary reaction at the cathode.
5. What is the function of the electrolyte?
o A chemical substance containing ions that migrate in an
electric field, enabling the electrochemical reactions in the
corrosion process.
6. What is the function of the metallic pathway (return path)?
o It connects the anode and cathode, allowing the passage of
electrons generated at the anode to the cathode.
7. What is the galvanic series?
o A list of metals and alloys arranged according to their
corrosion potentials in a given environment.
8. What are the general rules of galvanic corrosion?
o When dissimilar metals are connected, the more active
(anodic) metal corrodes more rapidly, while the more noble
(cathodic) metal corrodes less. As the potential difference
increases, the rate of galvanic corrosion also increases.
9. Name at least five factors that affect the rate of corrosion.
