1|Page
NACE CP2 – Exam |Actual Questions
With Verified Answers 2026
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
,2|Page
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
,3|Page
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.
, 4|Page
A) current, active state
B) voltage, active state
C) active resistance, voltage
D) resistance, active state
E) current, active resistance - correct-answer - b
During the refining stage of metal the ____ the energy, the more ____
the metal and the more tendency it has to corrode.
A) higher, inactive
B) lower, active
C) higher, active
D) lower, inactive - correct-answer - c
What is the most common iron ore?
A) hemophite
NACE CP2 – Exam |Actual Questions
With Verified Answers 2026
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
,2|Page
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
,3|Page
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.
, 4|Page
A) current, active state
B) voltage, active state
C) active resistance, voltage
D) resistance, active state
E) current, active resistance - correct-answer - b
During the refining stage of metal the ____ the energy, the more ____
the metal and the more tendency it has to corrode.
A) higher, inactive
B) lower, active
C) higher, active
D) lower, inactive - correct-answer - c
What is the most common iron ore?
A) hemophite
