NACE CP2 – EXAM QUESTIONS WITH VERIFIED
SOLUTIONS NEW MODIFIED TESTED AND
GRADED A+
START OF CHAPTER 1
_____ 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
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,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
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
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,C) higher, active
D) lower, inactive --CORRECT ANSWER--c
What is the most common iron ore?
A) hemophite
B) hematite
C) magnesium
D) calcium
E) aluminum --CORRECT ANSWER--b
True or false
Iron is considered thermodynamically unstable? --CORRECT ANSWER--t
True or false
Gold is more noble than zinc? --CORRECT ANSWER--t
Which of the following metals is most active?
A) magnesium
B) copper
C) iron
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, D) nickel
E) platinum --CORRECT ANSWER--a
Electromotive force (emf), is ____ in sign and magnitude to the electrode potential of the ___
less the electrode potential of the ____.
A) unequal, cathode, anode
B) unequal, anode, cathode
C) equal, cathode, anode
D) equal, anode, cathode --CORRECT ANSWER--d
The driving force for electrochemical corrosion is ____
A) current
B) voltage
C) resistance
D) ohms
E) siemens-cm --CORRECT ANSWER--b
Corrosion is an electrochemical process involving
A) flow of protons and electrons
B) flow of neutrons and ions
C) flow of protons and ions
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SOLUTIONS NEW MODIFIED TESTED AND
GRADED A+
START OF CHAPTER 1
_____ 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
Page 1 of 166
,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
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
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,C) higher, active
D) lower, inactive --CORRECT ANSWER--c
What is the most common iron ore?
A) hemophite
B) hematite
C) magnesium
D) calcium
E) aluminum --CORRECT ANSWER--b
True or false
Iron is considered thermodynamically unstable? --CORRECT ANSWER--t
True or false
Gold is more noble than zinc? --CORRECT ANSWER--t
Which of the following metals is most active?
A) magnesium
B) copper
C) iron
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, D) nickel
E) platinum --CORRECT ANSWER--a
Electromotive force (emf), is ____ in sign and magnitude to the electrode potential of the ___
less the electrode potential of the ____.
A) unequal, cathode, anode
B) unequal, anode, cathode
C) equal, cathode, anode
D) equal, anode, cathode --CORRECT ANSWER--d
The driving force for electrochemical corrosion is ____
A) current
B) voltage
C) resistance
D) ohms
E) siemens-cm --CORRECT ANSWER--b
Corrosion is an electrochemical process involving
A) flow of protons and electrons
B) flow of neutrons and ions
C) flow of protons and ions
Page 4 of 166
