NACE CP2 FINAL EXAM ACTUAL PREP
QUESTIONS AND WELL REVISED ANSWERS -
LATEST AND COMPLETE UPDATE WITH
VERIFIED SOLUTIONS – ASSURED PASS
NACE 2026 Student Manual!
All things being equal, the greater the magnitude of the difference between two
voltages of metals, the ____ the current flow and rate of corrosion
A) higher
B) lower - ANSWER: a
True or False ( t or f)
Magnesium will corrode at a slower rate when connected to steel rather than zinc?
- ANSWER: f
Which reference electrode is considered a primary reference electrode because it is
used to determine the potential of other secondary reference electrodes that are
better suited for field use?
A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc
,E) SHE - ANSWER: e
Most common used reference electrode for measuring potentials of underground
structures?
A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc
E) SHE - ANSWER: a
True or false (t or f)
The potential of a reference electrode in the sun can decrease from 10 to 50mV
versus an electrode kept in the dark? - ANSWER: t
Which reference electrode is mostly commonly used in seawater?
A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc
E) SHE - ANSWER: b
Which reference electrode is mostly commonly used in concrete structures?
,A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc
E) SHE - ANSWER: b
Which of the following is primarily a laboratory electrode?
A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc - ANSWER: c
When doing a structure to electrolyte potential , the structure is connected via the
_____ terminal and the reference is connected via the _____ terminal
A) negative , positive
B) positive, negative - ANSWER: b
A potential of -0.810Vcse converted to Calomel (SCE)
A) +0.306 sce
B) -0.750 sce
C) -0.735 sce - ANSWER: c
, A potential of -0.810Vcse converted to Ag/AgCI (SSC)
A) +0.306 ssc
B) -0.735 ssc
C) -0.750 ssc - ANSWER: c
A potential of -0.810Vcse converted to Zinc (ZRE)
A) +0.306 zre
B) -0.735 zre
C) -0.750 zre - ANSWER: a
True or False (t or f)
The potential of a STATIONARY reference electrode should be checked from
time to time
with a portable reference electrode that is known to be accurate under
"no
current" conditions. - ANSWER: t
As current is impressed on a metal over time, where does polarization occur?
A) at the anode and the cathode
B) at the anode
C) at the cathode - ANSWER: a
QUESTIONS AND WELL REVISED ANSWERS -
LATEST AND COMPLETE UPDATE WITH
VERIFIED SOLUTIONS – ASSURED PASS
NACE 2026 Student Manual!
All things being equal, the greater the magnitude of the difference between two
voltages of metals, the ____ the current flow and rate of corrosion
A) higher
B) lower - ANSWER: a
True or False ( t or f)
Magnesium will corrode at a slower rate when connected to steel rather than zinc?
- ANSWER: f
Which reference electrode is considered a primary reference electrode because it is
used to determine the potential of other secondary reference electrodes that are
better suited for field use?
A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc
,E) SHE - ANSWER: e
Most common used reference electrode for measuring potentials of underground
structures?
A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc
E) SHE - ANSWER: a
True or false (t or f)
The potential of a reference electrode in the sun can decrease from 10 to 50mV
versus an electrode kept in the dark? - ANSWER: t
Which reference electrode is mostly commonly used in seawater?
A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc
E) SHE - ANSWER: b
Which reference electrode is mostly commonly used in concrete structures?
,A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc
E) SHE - ANSWER: b
Which of the following is primarily a laboratory electrode?
A) CSE
B) Ag/AgCI
C) Calomel
D) Zinc - ANSWER: c
When doing a structure to electrolyte potential , the structure is connected via the
_____ terminal and the reference is connected via the _____ terminal
A) negative , positive
B) positive, negative - ANSWER: b
A potential of -0.810Vcse converted to Calomel (SCE)
A) +0.306 sce
B) -0.750 sce
C) -0.735 sce - ANSWER: c
, A potential of -0.810Vcse converted to Ag/AgCI (SSC)
A) +0.306 ssc
B) -0.735 ssc
C) -0.750 ssc - ANSWER: c
A potential of -0.810Vcse converted to Zinc (ZRE)
A) +0.306 zre
B) -0.735 zre
C) -0.750 zre - ANSWER: a
True or False (t or f)
The potential of a STATIONARY reference electrode should be checked from
time to time
with a portable reference electrode that is known to be accurate under
"no
current" conditions. - ANSWER: t
As current is impressed on a metal over time, where does polarization occur?
A) at the anode and the cathode
B) at the anode
C) at the cathode - ANSWER: a
