NACE CP2 - Exam 2023 Questions and Answersu u u u u u u
1. NACE 2008 Student Manual!
u u u u
START OF CHAPTER 1
u u u
Corrosion is an electrochemical process involving
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A) flow of protons and electrons
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B) flow of neutrons and ions
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C) flow of protons and ions
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D) flow of electrons and ions
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E) flow of resistance and resistivity: d
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2. Metal loss or corrosion occurs at the
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A) cathode
B) anode
C) electronic path u
D) metallic path: b u u
3. What are the four parts of the corrosion cell
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A) anode, resistor, electrolyte, metallic path
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B) anode, cathode, electron, electronic path
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C) anode, cathode, electrolyte, metallic path: c
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4. True or False (t or f)
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1u/u100
,Ions exist only in the electrolyte?: t
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5. Electrons flow in a corrosion cell by which of the following paths?
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A) anode to cathode via electrolyte
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B) cathode to anode via electronic path
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C) anode to cathode via electronic path: c
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6. At the cathodic surface in a corrosion cell, the electrons from the
u u u u u u u u u u u uu
u meet ions from the solution. u u u
A) cathode, hydrogen u
B) cathode, OH- u
C) anode, hydrogen u
D) anode, OH-: c u u
7. Oxidation of the metal occurs at the
u u u u u u uu
surfaces and reduction of
u u u ions occurs at the
u u u .
2u/u100
,A) anodic, hydrogen, cathodes u u
B) cathode, OH-, anodic u u
C) anodic, OH-, cathodes u u
D) cathode, anodic, electrolyte u u
E) cathode, hydrogen, electrolyte: a u u u
8. True or false u u
Is oxidation necessarily associated with oxygen?: f
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9. Current flow in a corrosion cell flows which path:
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A) anode to metallic path to cathode
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B) anode to electronic path to cathode
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C) cathode to metallic to anode u u u u
D) cathode to electrolyte to anode u u u u
E) anode to electrolyte to cathode
u u u u
Voltage is the measure of the electrochemical difference between two elec-
u u u u u u u u u u
trodes
u
in an electrolyte: e
u u u
10. u
is the measure of the electrochemical difference between twoelectro
u u u u u u u u u
des
in an electrolyte
u u
3u/u100
, A) current
B) resistance
C) error
D) ohms
E) ohms-cm
F) voltage: f u
11. The uu
represents the reversible work to move a unit charge from the electrodes
u u u u u u u u u u u u
urface
through the solution to the reference electrode
u u u u u u
A) current potential
u
B) electrode potential u
4u/u100
1. NACE 2008 Student Manual!
u u u u
START OF CHAPTER 1
u u u
Corrosion is an electrochemical process involving
u u u u u
A) flow of protons and electrons
u u u u
B) flow of neutrons and ions
u u u u
C) flow of protons and ions
u u u u
D) flow of electrons and ions
u u u u
E) flow of resistance and resistivity: d
u u u u u
2. Metal loss or corrosion occurs at the
u u u u u u
A) cathode
B) anode
C) electronic path u
D) metallic path: b u u
3. What are the four parts of the corrosion cell
u u u u u u u u
A) anode, resistor, electrolyte, metallic path
u u u u
B) anode, cathode, electron, electronic path
u u u u
C) anode, cathode, electrolyte, metallic path: c
u u u u u
4. True or False (t or f)
u u u u u
1u/u100
,Ions exist only in the electrolyte?: t
u u u u u u
5. Electrons flow in a corrosion cell by which of the following paths?
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A) anode to cathode via electrolyte
u u u u
B) cathode to anode via electronic path
u u u u u
C) anode to cathode via electronic path: c
u u u u u u
6. At the cathodic surface in a corrosion cell, the electrons from the
u u u u u u u u u u u uu
u meet ions from the solution. u u u
A) cathode, hydrogen u
B) cathode, OH- u
C) anode, hydrogen u
D) anode, OH-: c u u
7. Oxidation of the metal occurs at the
u u u u u u uu
surfaces and reduction of
u u u ions occurs at the
u u u .
2u/u100
,A) anodic, hydrogen, cathodes u u
B) cathode, OH-, anodic u u
C) anodic, OH-, cathodes u u
D) cathode, anodic, electrolyte u u
E) cathode, hydrogen, electrolyte: a u u u
8. True or false u u
Is oxidation necessarily associated with oxygen?: f
u u u u u u
9. Current flow in a corrosion cell flows which path:
u u u u u u u u
A) anode to metallic path to cathode
u u u u u
B) anode to electronic path to cathode
u u u u u
C) cathode to metallic to anode u u u u
D) cathode to electrolyte to anode u u u u
E) anode to electrolyte to cathode
u u u u
Voltage is the measure of the electrochemical difference between two elec-
u u u u u u u u u u
trodes
u
in an electrolyte: e
u u u
10. u
is the measure of the electrochemical difference between twoelectro
u u u u u u u u u
des
in an electrolyte
u u
3u/u100
, A) current
B) resistance
C) error
D) ohms
E) ohms-cm
F) voltage: f u
11. The uu
represents the reversible work to move a unit charge from the electrodes
u u u u u u u u u u u u
urface
through the solution to the reference electrode
u u u u u u
A) current potential
u
B) electrode potential u
4u/u100