NACE CP2 – EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2025 – 2026
Which of these devices does not involve caustic liquid
electrolytes and is low maintenance
A) polarization cell
B) SSD - ANSWERS-c
A polarization cell used as a ___ decoupler that allows ___
current to pass to a ground while blocking the __ current
intended for the cathodic protection of the structure
A) DC, AC, DC
B) AC, DC, DC
C) AC, AC, DC
D) DC, DC, AC - ANSWERS-a
,True or False ( t or f)
Grounding mats are intended to be an electrical ground -
ANSWERS-f
They are not intended to be an electrical ground as they are
installed close to the surface often in high-resistivity soil or
frost
True or False (t or f)
If zinc or magnesium ground mats are used as a gradient
mat around a test station, then the instant OFF potential is
no longer valid as all sources of
DC current have not been interrupted. - ANSWERS-t
In regards to AC Mitigation and AC density:
20 A/m 2 < i ac < 100 A/m 2
A) No corrosion
,B) Corrosion unpredictable
C) corrosion expected - ANSWERS-b
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 - ANSWERS-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 - ANSWERS-c
, What is the most common iron ore?
A) hemophite
B) hematite
C) magnesium
D) calcium
E) aluminum - ANSWERS-b
True or false
Iron is considered thermodynamically unstable? -
ANSWERS-t
True or false
Gold is more noble than zinc? - ANSWERS-t
Which of the following metals is most active?
A) magnesium
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2025 – 2026
Which of these devices does not involve caustic liquid
electrolytes and is low maintenance
A) polarization cell
B) SSD - ANSWERS-c
A polarization cell used as a ___ decoupler that allows ___
current to pass to a ground while blocking the __ current
intended for the cathodic protection of the structure
A) DC, AC, DC
B) AC, DC, DC
C) AC, AC, DC
D) DC, DC, AC - ANSWERS-a
,True or False ( t or f)
Grounding mats are intended to be an electrical ground -
ANSWERS-f
They are not intended to be an electrical ground as they are
installed close to the surface often in high-resistivity soil or
frost
True or False (t or f)
If zinc or magnesium ground mats are used as a gradient
mat around a test station, then the instant OFF potential is
no longer valid as all sources of
DC current have not been interrupted. - ANSWERS-t
In regards to AC Mitigation and AC density:
20 A/m 2 < i ac < 100 A/m 2
A) No corrosion
,B) Corrosion unpredictable
C) corrosion expected - ANSWERS-b
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 - ANSWERS-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 - ANSWERS-c
, What is the most common iron ore?
A) hemophite
B) hematite
C) magnesium
D) calcium
E) aluminum - ANSWERS-b
True or false
Iron is considered thermodynamically unstable? -
ANSWERS-t
True or false
Gold is more noble than zinc? - ANSWERS-t
Which of the following metals is most active?
A) magnesium
