NACE CP2 ALL CORE REVIEW ANSWERS AND
QUESTIONS SURE A+
✔✔Which of these anodes is known for being brittle
A) Magnesium
B) Zinc
C) Graphite
D) Aluminum
E) Galvalum
F) Magnetite - ✔✔c
✔✔Consist of rare earth oxides baked onto a titanium substrate
A) Magnesium
B) Mixed-metal Oxide
C) Galvalum
D) Aluminum
E) Graphite
F) High-Silicon Chromium-Bearing Cast Iron - ✔✔b
✔✔______ and _____ alloys have been used as impressed
current anodes on reinforced concrete structures.
A) Magnetite, Mixed-Metal Oxide
B) Copper, Galvalum
C) Thermal sprayed zinc, aluminum - ✔✔c
✔✔It is used in seawater,
brackish water, fresh water, and high-resistivity soil
A) Magnesium
B) Zinc
C) Graphite
,D) Aluminum
E) Galvalum
F) Magnetite - ✔✔f
✔✔The purpose of anode backfill material is
I reduce the resistivity
II extend the anode surface area
III decrease the amount of current the anode can discharge
IV reduce consumption of the anode
A) I, II
B) I, II, III, IV
C) II, III, IV
D) I, II, IV - ✔✔d
✔✔True or False (t or f)
The resistance of carbon backfill is not dependent on how well it is compacted - ✔✔f
✔✔In regards to anode backfill:
The ____ the degree of compaction, the ____ the resistance
A) lower, higher
B) higher, higher
C) higher, lower
D) lower, lower - ✔✔c
✔✔In regards to anode backfill:
____ grade coke is often used for ____ anode systems
A) larger, hortizonal
B) finer, deep
C) finer, shallow
D) larger, deep - ✔✔b
✔✔True or false (t or f)
Any exposed
metal in an impressed current CP system is part of the anode. - ✔✔t
✔✔Types of CP cables:
,This insulation is commonly used for direct burial cathodic protection installations for
both anode and structure wiring
A) HMWPE
B) Halar
C) Kynar - ✔✔a
✔✔The primary reactions at the anode surface are:
I metal oxidation
II oxygen and chlorine evolution
III chlorine generation
A) only I
B) I, II
C) I, II, III - ✔✔c
✔✔Gases in a deep anode system should be ____
A) vented
B) non vented - ✔✔a
✔✔Reactions at the anode produce an excess of ____ ions
A) hydroxl
B) chlorine
C) carbon
D) hydrogen - ✔✔d
✔✔Hydrogen ions will _____ the environment immediately adjacent to the anode
A) acidify
B) alkalify - ✔✔a
✔✔Anode configurations can be described as ____ or ____
A) distributed, nondistributed
B) remote, unified
C) distributed, remote - ✔✔c
✔✔The anode gradients are ____ within a few feet of the anode.
A) largest
B) smallest - ✔✔a
, ✔✔The term ____ refers to the point where further distance from the anode produces
no further change in voltage gradient.
A) distributed
B) remote earth
C) area of influence
D) gradient area - ✔✔b
✔✔A _____ configuration uses anodes located at relatively close intervals
along the structure.
A) distributed
B) remote earth
C) area of influence
D) gradient area - ✔✔a
✔✔In regards to distributed anode configuration:
"Close" means that the structure being protected will fall within the anode
______, This means that the anodes will cause the electrolyte around
the structure to become ____ with respect to remote earth
A) current gradient, negative
B) voltage gradient, positive
C) distributed gradient, positive
D) remote earth gradient, positive - ✔✔b
✔✔A ____ configuration uses anodes placed at a location
considered electrically far from the structure
A) distributed
B) remote earth
C) area of influence
D) gradient area - ✔✔b
✔✔True or false (t or f)
The term electrically remote
and geometrically remote are the same thing - ✔✔f
✔✔____ anodes are used for coated structures where only holidays in the coating are
protected by the CP system and for structures that are electrically isolated from
other structures.
A) remote
QUESTIONS SURE A+
✔✔Which of these anodes is known for being brittle
A) Magnesium
B) Zinc
C) Graphite
D) Aluminum
E) Galvalum
F) Magnetite - ✔✔c
✔✔Consist of rare earth oxides baked onto a titanium substrate
A) Magnesium
B) Mixed-metal Oxide
C) Galvalum
D) Aluminum
E) Graphite
F) High-Silicon Chromium-Bearing Cast Iron - ✔✔b
✔✔______ and _____ alloys have been used as impressed
current anodes on reinforced concrete structures.
A) Magnetite, Mixed-Metal Oxide
B) Copper, Galvalum
C) Thermal sprayed zinc, aluminum - ✔✔c
✔✔It is used in seawater,
brackish water, fresh water, and high-resistivity soil
A) Magnesium
B) Zinc
C) Graphite
,D) Aluminum
E) Galvalum
F) Magnetite - ✔✔f
✔✔The purpose of anode backfill material is
I reduce the resistivity
II extend the anode surface area
III decrease the amount of current the anode can discharge
IV reduce consumption of the anode
A) I, II
B) I, II, III, IV
C) II, III, IV
D) I, II, IV - ✔✔d
✔✔True or False (t or f)
The resistance of carbon backfill is not dependent on how well it is compacted - ✔✔f
✔✔In regards to anode backfill:
The ____ the degree of compaction, the ____ the resistance
A) lower, higher
B) higher, higher
C) higher, lower
D) lower, lower - ✔✔c
✔✔In regards to anode backfill:
____ grade coke is often used for ____ anode systems
A) larger, hortizonal
B) finer, deep
C) finer, shallow
D) larger, deep - ✔✔b
✔✔True or false (t or f)
Any exposed
metal in an impressed current CP system is part of the anode. - ✔✔t
✔✔Types of CP cables:
,This insulation is commonly used for direct burial cathodic protection installations for
both anode and structure wiring
A) HMWPE
B) Halar
C) Kynar - ✔✔a
✔✔The primary reactions at the anode surface are:
I metal oxidation
II oxygen and chlorine evolution
III chlorine generation
A) only I
B) I, II
C) I, II, III - ✔✔c
✔✔Gases in a deep anode system should be ____
A) vented
B) non vented - ✔✔a
✔✔Reactions at the anode produce an excess of ____ ions
A) hydroxl
B) chlorine
C) carbon
D) hydrogen - ✔✔d
✔✔Hydrogen ions will _____ the environment immediately adjacent to the anode
A) acidify
B) alkalify - ✔✔a
✔✔Anode configurations can be described as ____ or ____
A) distributed, nondistributed
B) remote, unified
C) distributed, remote - ✔✔c
✔✔The anode gradients are ____ within a few feet of the anode.
A) largest
B) smallest - ✔✔a
, ✔✔The term ____ refers to the point where further distance from the anode produces
no further change in voltage gradient.
A) distributed
B) remote earth
C) area of influence
D) gradient area - ✔✔b
✔✔A _____ configuration uses anodes located at relatively close intervals
along the structure.
A) distributed
B) remote earth
C) area of influence
D) gradient area - ✔✔a
✔✔In regards to distributed anode configuration:
"Close" means that the structure being protected will fall within the anode
______, This means that the anodes will cause the electrolyte around
the structure to become ____ with respect to remote earth
A) current gradient, negative
B) voltage gradient, positive
C) distributed gradient, positive
D) remote earth gradient, positive - ✔✔b
✔✔A ____ configuration uses anodes placed at a location
considered electrically far from the structure
A) distributed
B) remote earth
C) area of influence
D) gradient area - ✔✔b
✔✔True or false (t or f)
The term electrically remote
and geometrically remote are the same thing - ✔✔f
✔✔____ anodes are used for coated structures where only holidays in the coating are
protected by the CP system and for structures that are electrically isolated from
other structures.
A) remote
