NACE CIP Level 2 Theory/Practical Exam
Questions And Answers
Describe Passivation - - -
correct answer ✅Passivation is the formation of a protective oxide
film on the surface reducing its chemical activity and its ability to
corrode.
Describe the following factors and how they affect corrosion: - - -
correct answer ✅• Oxygen: Oxygen increases the rate of
corrosion.
• Temperature: Corrosion usually accelerated with increasing
temperature
• Chemical Salts: Increase the rate of corrosion by increasing the
efficiency of the electrolyte.
• Humidity (or Wetness): The wetter the environment, the more
corrosion is likely to occur.
• Pollutants and Acid Gases: Acid rain, chemical byproducts and
chlorides all promote corrosion.
Two broad categories of corrosion can be described as: - - -
correct answer ✅General
Localized
,NACE CIP Level 2 Theory/Practical Exam
Questions And Answers
Describe Galvanic Corrosion - - -
correct answer ✅Galvanic corrosion is an electrochemical action
of two dissimilar metals in the presence of an electrolyte and an
electron conductive path, which occurs when dissimilar metals
come into contact.
Describe Cathodic Protection - - -
correct answer ✅Cathodic protection is the reduction or
elimination of corrosion by making the structure to be protected a
cathode by means of an impressed current or attachment to a
galvanic anode.
The two primary types of cathodic protection are: - - -
correct answer ✅Impressed Current
Galvanic (Sacrificial)
Impressed current power sources include: - - -
correct answer ✅Rectified commercial power
Solar cells
Generators
Fuel cells
Wind-powered cells
,NACE CIP Level 2 Theory/Practical Exam
Questions And Answers
Thermoelectric cells
Describe Cathodic Disbondment - - -
correct answer ✅Cathodic disbondment is the separation of the
coating from the surface through hydroxyl (OH-) formation due to
increased (made more negative) potential.
The principal component of mild carbon steel is - - -
correct answer ✅A. Iron (Fe)
The formation of a thin surface layer on metals, whether an oxide,
carbonate, or other compound, that slows the rate of the corrosion
process is called? - - -
correct answer ✅D. Passivation
Which is the part of a corrosion cell where metal dissolves? - - -
correct answer ✅A. Anode
Which of these elements is likely to accelerate corrosion on a steel
structure? - - -
correct answer ✅A. Salts
C. High temperatures
, NACE CIP Level 2 Theory/Practical Exam
Questions And Answers
D. Pollutants
In a cathodic protection system the metal being protected is the? - -
-
correct answer ✅B. Cathode
When parts of a metal surface are shielded from full exposure to
the environment because of the close proximity of another metal,
corrosion at that location is identified as? - - -
correct answer ✅D. Crevice corrosion
Cathodic protection using impressed current is most commonly
used on? - - -
correct answer ✅C. Pipelines
Impressed current systems anodes include? - - -
correct answer ✅A. Graphite
C. High silicon cast iron
Describe dehumidification: - - -
correct answer ✅Dehumidification is the process of removing
moisture vapor from the air to lower its dew point.
Questions And Answers
Describe Passivation - - -
correct answer ✅Passivation is the formation of a protective oxide
film on the surface reducing its chemical activity and its ability to
corrode.
Describe the following factors and how they affect corrosion: - - -
correct answer ✅• Oxygen: Oxygen increases the rate of
corrosion.
• Temperature: Corrosion usually accelerated with increasing
temperature
• Chemical Salts: Increase the rate of corrosion by increasing the
efficiency of the electrolyte.
• Humidity (or Wetness): The wetter the environment, the more
corrosion is likely to occur.
• Pollutants and Acid Gases: Acid rain, chemical byproducts and
chlorides all promote corrosion.
Two broad categories of corrosion can be described as: - - -
correct answer ✅General
Localized
,NACE CIP Level 2 Theory/Practical Exam
Questions And Answers
Describe Galvanic Corrosion - - -
correct answer ✅Galvanic corrosion is an electrochemical action
of two dissimilar metals in the presence of an electrolyte and an
electron conductive path, which occurs when dissimilar metals
come into contact.
Describe Cathodic Protection - - -
correct answer ✅Cathodic protection is the reduction or
elimination of corrosion by making the structure to be protected a
cathode by means of an impressed current or attachment to a
galvanic anode.
The two primary types of cathodic protection are: - - -
correct answer ✅Impressed Current
Galvanic (Sacrificial)
Impressed current power sources include: - - -
correct answer ✅Rectified commercial power
Solar cells
Generators
Fuel cells
Wind-powered cells
,NACE CIP Level 2 Theory/Practical Exam
Questions And Answers
Thermoelectric cells
Describe Cathodic Disbondment - - -
correct answer ✅Cathodic disbondment is the separation of the
coating from the surface through hydroxyl (OH-) formation due to
increased (made more negative) potential.
The principal component of mild carbon steel is - - -
correct answer ✅A. Iron (Fe)
The formation of a thin surface layer on metals, whether an oxide,
carbonate, or other compound, that slows the rate of the corrosion
process is called? - - -
correct answer ✅D. Passivation
Which is the part of a corrosion cell where metal dissolves? - - -
correct answer ✅A. Anode
Which of these elements is likely to accelerate corrosion on a steel
structure? - - -
correct answer ✅A. Salts
C. High temperatures
, NACE CIP Level 2 Theory/Practical Exam
Questions And Answers
D. Pollutants
In a cathodic protection system the metal being protected is the? - -
-
correct answer ✅B. Cathode
When parts of a metal surface are shielded from full exposure to
the environment because of the close proximity of another metal,
corrosion at that location is identified as? - - -
correct answer ✅D. Crevice corrosion
Cathodic protection using impressed current is most commonly
used on? - - -
correct answer ✅C. Pipelines
Impressed current systems anodes include? - - -
correct answer ✅A. Graphite
C. High silicon cast iron
Describe dehumidification: - - -
correct answer ✅Dehumidification is the process of removing
moisture vapor from the air to lower its dew point.
