NACE CP2 STUDY ACTUAL EXAM SCRIPT 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ True or False (t or f)
The potential of interest when determining adequate cathodic
protection is the
polarized potential across the structure/electrolyte interface.
Answer: t
◉ Figure 2.15
E true =
A) Structure to electrolyte potential
B) Reference-to-earth resistance
C) Pipe-to-earth resistance. Answer: a
◉ Figure 2.15
R r,e =
A) Structure to electrolyte potential
B) Reference-to-earth resistance
,C) Pipe-to-earth resistance. Answer: b
◉ Figure 2.15
R p,e =
A) Structure to electrolyte potential
B) Reference-to-earth resistance
C) Pipe-to-earth resistance. Answer: c
◉ Figure 2.15 (a) Electrical Schematic of the Structure to Electrolyte
Measurement Circuit
A) Vm = Rm/Rt * Etrue
B) Vm= Rt/Rm * Etrue
C) Vm = Rt/Etrue * Rm
D) Vm = Rm/Etrue *Rm. Answer: a
◉ Do you want high or low impedance on your internal circuit of
your meter?
A) low
B) high. Answer: b
,◉ The IR drop across the electrolyte can be reduced to near zero by
placing the reference electrode ____ the structure coating holiday or
by ____ the current flow
A) far, allowing
B) near, interrupting. Answer: b
◉ The criterion for cathodically protecting aluminum based on
NACE Standard
SP0169 is a minimum of ___ mV of polarization as measured
between the structure surface and a stable reference electrode
contacting the electrolyte.
A) 50
B) 75
C) 100
D) 25. Answer: c
◉ True or false (t or f)
Aluminum is NOT amphoteric. Answer: f
, ◉ Aluminum corrodes under ____ conditions
A) both acid and alkaline
B) acidic only
C) alkaline only. Answer: a
◉ The criteria for the cathodic protection of copper based on NACE
Standard
SP0169 is a minimum of 100 mV of polarization as measured
between the
structure surface and a stable reference electrode contacting the
electrolyte.
A) 50
B) 75
C) 100
D) 25. Answer: c
◉ NACE Standard ____, "Cathodic Protection of Reinforcing Steel in
Atmospherically Exposed Concrete Structures,"
A) SP0169
QUESTIONS WITH ANSWERS GRADED A+
◉ True or False (t or f)
The potential of interest when determining adequate cathodic
protection is the
polarized potential across the structure/electrolyte interface.
Answer: t
◉ Figure 2.15
E true =
A) Structure to electrolyte potential
B) Reference-to-earth resistance
C) Pipe-to-earth resistance. Answer: a
◉ Figure 2.15
R r,e =
A) Structure to electrolyte potential
B) Reference-to-earth resistance
,C) Pipe-to-earth resistance. Answer: b
◉ Figure 2.15
R p,e =
A) Structure to electrolyte potential
B) Reference-to-earth resistance
C) Pipe-to-earth resistance. Answer: c
◉ Figure 2.15 (a) Electrical Schematic of the Structure to Electrolyte
Measurement Circuit
A) Vm = Rm/Rt * Etrue
B) Vm= Rt/Rm * Etrue
C) Vm = Rt/Etrue * Rm
D) Vm = Rm/Etrue *Rm. Answer: a
◉ Do you want high or low impedance on your internal circuit of
your meter?
A) low
B) high. Answer: b
,◉ The IR drop across the electrolyte can be reduced to near zero by
placing the reference electrode ____ the structure coating holiday or
by ____ the current flow
A) far, allowing
B) near, interrupting. Answer: b
◉ The criterion for cathodically protecting aluminum based on
NACE Standard
SP0169 is a minimum of ___ mV of polarization as measured
between the structure surface and a stable reference electrode
contacting the electrolyte.
A) 50
B) 75
C) 100
D) 25. Answer: c
◉ True or false (t or f)
Aluminum is NOT amphoteric. Answer: f
, ◉ Aluminum corrodes under ____ conditions
A) both acid and alkaline
B) acidic only
C) alkaline only. Answer: a
◉ The criteria for the cathodic protection of copper based on NACE
Standard
SP0169 is a minimum of 100 mV of polarization as measured
between the
structure surface and a stable reference electrode contacting the
electrolyte.
A) 50
B) 75
C) 100
D) 25. Answer: c
◉ NACE Standard ____, "Cathodic Protection of Reinforcing Steel in
Atmospherically Exposed Concrete Structures,"
A) SP0169
