Nace cip level 1 study guide questions and answers latest / Verified With Complete Solution
Question : Define Corrosion
Correct answer: The deterioration of a substance, usually a
metal from a reaction with its environment
Question : What is passivation?
Correct answer: A layer of oxides formed on the surface of a
metal that provides corrosion protection.
Question : What is an example of passivation?
Correct answer: Stainless Steel
Question : What are the elements of a corrosion cell?
Correct answer: Anode, Cathode, Metallic Pathway,
Electrolyte
Question : Describe what happens at the anode.
Correct answer: The metal dissolves into the electrolyte
Question : What is the function of the electrolyte?
Correct answer: Allows the passage of ions to connect the
corrosion cell
Question : What is the function of the metallic pathway?
Correct answer: Allows the flow of electrons to connect the
corrosion cell
Question : What is the galvanic series?
Correct answer: A listing of metals in order of reactivity
(more or less noble) in seawater at 25 C
Question : The general rules of galvanic corrosion are:
Correct answer: The less noble (or more reactive) metal when
connected to a more noble (or less reactive metal) will corrode preferentially
Question : Name the five most important factors that affect
the rate of corrosion.
Correct answer: Humidity, oxygen, chemical salts, pollutants,
temperature
Question : General corrosion is:
Correct answer: Results in a relatively uniform loss of
material over the entire surface, Results in a general thinning of the affected surface, Relatively easy to inspect, Does not casue catastrophic failures
Question : Localized corrosion is:
Correct answer: Typically pitting and crevice corrosion. It is
typically of the most concern as damage is concentrated and loss of integrity or structural failure can result.
Question : List some of the common tools/methods used for
corrosion control.
Correct answer: Design, Inhibitors, Material Selection,
Cathodic Protection, Protective Coatings, Splash Zone Systems, Alteration of the Environment
Question : How does NACE define the inspector's role?
Correct answer: The inspector's role is that of a quality
control technician responsible for observing and reporting conformance or deviation from the project specification.
Question : What is the inspector's responsibility when it
comes to safety on the project?
Correct answer: Safety enforcement is not the responsibility
of the inspector; however, it is his/her responsibility to report any issues that may affect the project.
Question : Name some tests that may need to be conducted
during surface preparation and coating operations.
Correct answer: Temperature, Relative Humidity, Dew Point,
Anchor Profile, Surface Cleanliness
Question : Name some of the documentation/reports that may
be required to be maintained on a coatings project.