NACE CIP Level 2 Exam Study Guide; Latest 2023/24

NACE CIP Level 2 Exam Study Guide; Latest 2023/24

NACE CIP Level 2 Exam Study Guide
Describe galvanic corrosion
Correct Answer:
Electrochemical reaction of two dissimilar metals in contact with the presence of an
electrolyte, and an electron conductive path. Reactive metal will corrode to protect the
noble metal
Two broad categories of corrosion?
Correct Answer:

1. General
2. Localized
   How do pollutants and gases affect corrosion?
   Correct Answer:
   They directly chemically attack the substrate and reduce the electrical resistance of the
   electrolyte
   How does humidity affect corrosion?
   Correct Answer:
   A more humid environment will accelerate corrosion

How do chemical salts affect corrosion?
Correct Answer:
They increase the rate of corrosion by increasing the electrolyte efficiency
How does temperature affect corrosion?
Correct Answer:

1. Corrosion reaction increases with temp. increase
2. Corrosion reactions are electrochemical in nature
   How does oxygen affect corrosion?
   Correct Answer:
   Increases corrosion rates as oxygen contact areas are cathodic
   Describe passivation
   Correct Answer:
   The production of a tightly adhered layer formed from the corrosion product
   Standard of Engineering Society description of a standard
   Correct Answer:
   A document that applies to codes, specs or practices, classifications, test methods and
   guides which have been prepared and published in accordance with established
   procedures

Properties of concrete
Correct Answer:

1. Inorganic
2. Hard
3. Good compressive strength
4. Improve with age
   Three NACE standards and classifications. Name and define them.
   Correct Answer:
   Standard practice: Details of construction, methods of treating required to reduce
   corrosion. Test methods: Ascertain characteristics of material design and operation.
   Materials requirement: State necessary characteristics when corrosion is a factor in the
   selection application or maintenance of a material.
   NSB
   Correct Answer:
   National Standards Body
   SDO
   Correct Answer:
   Standards Development Organization

Difference in sacking and stoning
Correct Answer:
Sacking uses a cement sack or rubber sponge for application and stoning uses a
carborendum brick or abrasive block
Advantages of water setting and wet abrasive blasting
Correct Answer:

1. Quickly cuts surface
2. Washes dust away
3. Reduces abrasive and concrete particles in air
   Surface prep is generally performed by:
   Correct Answer:
4. Abrasive blast
5. Hand or Power tool
6. HP water jet
7. Acid Etch
8. Stone
9. Centrifugal
10. Scarify
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