Page 1 of 86
NACE (NATIONAL ASSOCIATION OF
CORROSION ENGINEERS) CP1 TESTER EXAM
NEWEST 2026 ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALL ANSWERED {220 Q & A}
ALREADY GRADED A+ | BRAND NEW! | 100%
GUARANTEED PASS
Atoms
A) are positively charged particles in the nucleus
B) are neutral particles in the nucleus
C) are electrically charged atoms
D) consist of a nucleus and orbiting electrons, the number of
protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively
charged because the number of electrons is greater than the
number of protons - ✔✔✔ Correct Answer > d
What type of CP would you use on a bare or poorly coated
structure?
,Page 2 of 86
A) Impressed Current Cathodic Protection
B) Galavanic System - ✔✔✔ Correct Answer > a
Graphite anodes perform well in what type of soil?
A) wet
B) seawater area
C) relatively dry soil - ✔✔✔ Correct Answer > c
PART OF WRITTEN EXAMINATION:
What type of anode was developed primarly for use in seawater?
A) Graphite
B) carbon
C) platinum
D) aluminum
E) mixed metal oxide - ✔✔✔ Correct Answer > c
What type of anode is used primarily in unheated water storage
tanks?
,Page 3 of 86
A) Graphite
B) carbon
C) platinum
D) aluminum
E) mixed metal oxide - ✔✔✔ Correct Answer > d
What type of anode is highly resistant to acid attack even at a pH
less than one?
A) Graphite
B) carbon
C) platinum
D) aluminum
E) mixed metal oxide - ✔✔✔ Correct Answer > e
PART OF WRITTEN EXAMINATION:
What is unquie about constant potential rectifiers?
A) the current stays the same while voltage changes
B) the current and voltage output vary
C) the voltage stays the same while current changes
, Page 4 of 86
D) the current switches between AC and DC - ✔✔✔ Correct Answer > b
PART OF WRITTEN EXAMINATION:
A well-coated structure is defined as
A) 95% or better
B) 90% or better
C) 99% or better
D) 93% or better - ✔✔✔ Correct Answer > c
What is a special concern in deep anode beds?
A) flow of the current upstream
B) blockage of backfill due to tight soils
C) pH scale
D) blockage of gas due to tight soils such as clay and silt at the
anodes - ✔✔✔ Correct Answer > d
PART OF WRITTEN EXAMINATION:
Corrosion rates tend to _____ with temperature
A) increase
NACE (NATIONAL ASSOCIATION OF
CORROSION ENGINEERS) CP1 TESTER EXAM
NEWEST 2026 ACTUAL EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALL ANSWERED {220 Q & A}
ALREADY GRADED A+ | BRAND NEW! | 100%
GUARANTEED PASS
Atoms
A) are positively charged particles in the nucleus
B) are neutral particles in the nucleus
C) are electrically charged atoms
D) consist of a nucleus and orbiting electrons, the number of
protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively
charged because the number of electrons is greater than the
number of protons - ✔✔✔ Correct Answer > d
What type of CP would you use on a bare or poorly coated
structure?
,Page 2 of 86
A) Impressed Current Cathodic Protection
B) Galavanic System - ✔✔✔ Correct Answer > a
Graphite anodes perform well in what type of soil?
A) wet
B) seawater area
C) relatively dry soil - ✔✔✔ Correct Answer > c
PART OF WRITTEN EXAMINATION:
What type of anode was developed primarly for use in seawater?
A) Graphite
B) carbon
C) platinum
D) aluminum
E) mixed metal oxide - ✔✔✔ Correct Answer > c
What type of anode is used primarily in unheated water storage
tanks?
,Page 3 of 86
A) Graphite
B) carbon
C) platinum
D) aluminum
E) mixed metal oxide - ✔✔✔ Correct Answer > d
What type of anode is highly resistant to acid attack even at a pH
less than one?
A) Graphite
B) carbon
C) platinum
D) aluminum
E) mixed metal oxide - ✔✔✔ Correct Answer > e
PART OF WRITTEN EXAMINATION:
What is unquie about constant potential rectifiers?
A) the current stays the same while voltage changes
B) the current and voltage output vary
C) the voltage stays the same while current changes
, Page 4 of 86
D) the current switches between AC and DC - ✔✔✔ Correct Answer > b
PART OF WRITTEN EXAMINATION:
A well-coated structure is defined as
A) 95% or better
B) 90% or better
C) 99% or better
D) 93% or better - ✔✔✔ Correct Answer > c
What is a special concern in deep anode beds?
A) flow of the current upstream
B) blockage of backfill due to tight soils
C) pH scale
D) blockage of gas due to tight soils such as clay and silt at the
anodes - ✔✔✔ Correct Answer > d
PART OF WRITTEN EXAMINATION:
Corrosion rates tend to _____ with temperature
A) increase
