NACE 1 Exam Questions
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,Anode
The electrode of an electrochemical cell at which oxidation occurs?
Anode
Electrons flow away from the_____in the external circuit.
Anode
Corrosion usually occurs and metal ions enter the solution at the_____?
Cathode
The electrode of an electrochemical cell at which reduction is the principal reaction?
Cathode
Electrons flow towards the______of an electrochemical cell.
Cathodic Protection
A technique to reduce the corrosion of a metal surface by making that surface the
cathode of an electrochemical cell.
,Corrosion
The deterioration of a material, usually a metal, that results from a reaction with the
environment.
Corrosion Cell
In order for corrosion to occur, certain conditions and elements are essential. This
combination of an anode, cathode, return path and electrolyte.
Crevice Corrosion
Localized corrosion of a metal surface at, or immediately adjacent to, an area that is
shielded from full exposure to the environment because of close proximity of the metal
surface of another material.
Corrosion Inhibitor
A chemical substance or combination of substances that, when present in the
environment, prevents or reduces corrosion.
Electrolyte
A chemical substance containing ions that migrate in the electric field.
Galvanic Series
A list of metals and alloys arranged according to their corrosion potentials in a given
, Generalized Corrosion
Corrosion that is distributed more or less uniformly over the surface of a material.
Localized Corrosion
This occurs at discrete sites on the metal surface.
Mill Scale
The oxide layer formed during hot fabrication or heat treatment of metals.
Passivation
A reduction of the anodic reaction rate of an electrode involved in corrosion.
Pitting Corrosion
Localized corrosion of a metal surface that is confined to a small area and takes the form
of cavities called pits.
Return Path (Metallic Pathway)
This connects the anode and cathode, allowing passage of electrons, generated at the
anode, to the cathode.
1 - 2 - Define Corrosion:
The deterioration of a material, usually a metal, that results from a reaction with the
environment.
Verified and Provided
with A+ Graded Answers
|Latest Updated 2026
,Anode
The electrode of an electrochemical cell at which oxidation occurs?
Anode
Electrons flow away from the_____in the external circuit.
Anode
Corrosion usually occurs and metal ions enter the solution at the_____?
Cathode
The electrode of an electrochemical cell at which reduction is the principal reaction?
Cathode
Electrons flow towards the______of an electrochemical cell.
Cathodic Protection
A technique to reduce the corrosion of a metal surface by making that surface the
cathode of an electrochemical cell.
,Corrosion
The deterioration of a material, usually a metal, that results from a reaction with the
environment.
Corrosion Cell
In order for corrosion to occur, certain conditions and elements are essential. This
combination of an anode, cathode, return path and electrolyte.
Crevice Corrosion
Localized corrosion of a metal surface at, or immediately adjacent to, an area that is
shielded from full exposure to the environment because of close proximity of the metal
surface of another material.
Corrosion Inhibitor
A chemical substance or combination of substances that, when present in the
environment, prevents or reduces corrosion.
Electrolyte
A chemical substance containing ions that migrate in the electric field.
Galvanic Series
A list of metals and alloys arranged according to their corrosion potentials in a given
, Generalized Corrosion
Corrosion that is distributed more or less uniformly over the surface of a material.
Localized Corrosion
This occurs at discrete sites on the metal surface.
Mill Scale
The oxide layer formed during hot fabrication or heat treatment of metals.
Passivation
A reduction of the anodic reaction rate of an electrode involved in corrosion.
Pitting Corrosion
Localized corrosion of a metal surface that is confined to a small area and takes the form
of cavities called pits.
Return Path (Metallic Pathway)
This connects the anode and cathode, allowing passage of electrons, generated at the
anode, to the cathode.
1 - 2 - Define Corrosion:
The deterioration of a material, usually a metal, that results from a reaction with the
environment.
