NACE CP2 – EXAM QUESTIONS AND ANSWERS
GRADE A+ 2024
NACE 2024 Student Manual!
START OF CHAPTER 1
Corrosion is an electrochemical process involving
A) flow of protons and electrons
B) flow of neutrons and ions
C) flow of protons and ions
D) flow of electrons and ions
E) flow of resistance and resistivity - Correct Answer d
Metal loss or corrosion occurs at the
A) cathode
B) anode
C) electronic path
D) metallic path - Correct Answer b
What are the four parts of the corrosion cell
A) anode, resistor, electrolyte, metallic path
B) anode, cathode, electron, electronic path
C) anode, cathode, electrolyte, metallic path - Correct Answer c
True or False (t or f):
,Ions exist only in the electrolyte? - Correct Answer t
Electrons flow in a corrosion cell by which of the following paths?
A) anode to cathode via electrolyte
B) cathode to anode via electronic path
C) anode to cathode via electronic path - Correct Answer c
At the cathodic surface in a corrosion cell, the electrons from the ____ meet ____ ions
from the solution.
A) cathode, hydrogen
B) cathode, OH-
C) anode, hydrogen
D) anode, OH- - Correct Answer c
Oxidation of the metal occurs at the ____
surfaces and reduction of ____ ions occurs at the ____.
A) anodic, hydrogen, cathodes
B) cathode, OH-, anodic
C) anodic, OH-, cathodes
D) cathode, anodic, electrolyte
E) cathode, hydrogen, electrolyte - Correct Answer a
,True or false
Is oxidation necessarily associated with oxygen? - Correct Answer f
Current flow in a corrosion cell flows which path:
A) anode to metallic path to cathode
B) anode to electronic path to cathode
C) cathode to metallic to anode
D) cathode to electrolyte to anode
E) anode to electrolyte to cathode
Voltage is the measure of the electrochemical difference between two electrodes
in an electrolyte - Correct Answer e
_____ is the measure of the electrochemical difference between two electrodes
in an electrolyte
A) current
B) resistance
C) error
D) ohms
E) ohms-cm
F) voltage - Correct Answer f
, The ________
represents the reversible work to move a unit charge from the electrode surface
through the solution to the reference electrode
A) current potential
B) electrode potential
C) resistance potential
D) ohms potential
E) Faraday potential - Correct Answer b
Metals occur in nature in the form of various chemical compounds referred to as
___
A) ores
B) anodic metals
C) cathodic metals
D) carbohydrates - Correct Answer a
The amount of energy required by a metal during the refining
process determines the ___ or _______ of the metal.
A) current, active state
GRADE A+ 2024
NACE 2024 Student Manual!
START OF CHAPTER 1
Corrosion is an electrochemical process involving
A) flow of protons and electrons
B) flow of neutrons and ions
C) flow of protons and ions
D) flow of electrons and ions
E) flow of resistance and resistivity - Correct Answer d
Metal loss or corrosion occurs at the
A) cathode
B) anode
C) electronic path
D) metallic path - Correct Answer b
What are the four parts of the corrosion cell
A) anode, resistor, electrolyte, metallic path
B) anode, cathode, electron, electronic path
C) anode, cathode, electrolyte, metallic path - Correct Answer c
True or False (t or f):
,Ions exist only in the electrolyte? - Correct Answer t
Electrons flow in a corrosion cell by which of the following paths?
A) anode to cathode via electrolyte
B) cathode to anode via electronic path
C) anode to cathode via electronic path - Correct Answer c
At the cathodic surface in a corrosion cell, the electrons from the ____ meet ____ ions
from the solution.
A) cathode, hydrogen
B) cathode, OH-
C) anode, hydrogen
D) anode, OH- - Correct Answer c
Oxidation of the metal occurs at the ____
surfaces and reduction of ____ ions occurs at the ____.
A) anodic, hydrogen, cathodes
B) cathode, OH-, anodic
C) anodic, OH-, cathodes
D) cathode, anodic, electrolyte
E) cathode, hydrogen, electrolyte - Correct Answer a
,True or false
Is oxidation necessarily associated with oxygen? - Correct Answer f
Current flow in a corrosion cell flows which path:
A) anode to metallic path to cathode
B) anode to electronic path to cathode
C) cathode to metallic to anode
D) cathode to electrolyte to anode
E) anode to electrolyte to cathode
Voltage is the measure of the electrochemical difference between two electrodes
in an electrolyte - Correct Answer e
_____ is the measure of the electrochemical difference between two electrodes
in an electrolyte
A) current
B) resistance
C) error
D) ohms
E) ohms-cm
F) voltage - Correct Answer f
, The ________
represents the reversible work to move a unit charge from the electrode surface
through the solution to the reference electrode
A) current potential
B) electrode potential
C) resistance potential
D) ohms potential
E) Faraday potential - Correct Answer b
Metals occur in nature in the form of various chemical compounds referred to as
___
A) ores
B) anodic metals
C) cathodic metals
D) carbohydrates - Correct Answer a
The amount of energy required by a metal during the refining
process determines the ___ or _______ of the metal.
A) current, active state
