1
NAC
NACE CP2 - P P
P EXAM QUESTIONS WITH CORRECT VERIFIED SOL
P P P P P
UTIONS 100% GUARANTEED PASS (LATEST UP
P P P P P
DATE)
Most common used reference electrode for measuring potentials of underground
p p p p p p p p p p
structures?
A) CSE
p
B) Ag/AgCI
p
C) Calomel
p
D) Zinc
p
E) SHE - ANS ✓a
p p p p
True or false (t or f)
p p p p p
The potential of a reference electrode in the sun can decrease from 10 to 50mV v
p p p p p p p p p p p p p p p
ersus an electrode kept in the dark? - ANS ✓t
p p p p p p p p p
Which reference electrode is mostly commonly used in seawater?
p p p p p p p p
A) CSE
p
B) Ag/AgCI
p
C) Calomel
p
D) Zinc
p
E) SHE - ANS ✓b
p p p p
NACE CP2
p
, 2
NAC
Which reference electrode is mostly commonly used in concrete structures?
p p p p p p p p p
A) CSE
p
B) Ag/AgCI
p
C) Calomel
p
D) Zinc
p
E) SHE - ANS ✓b
p p p p
Which of the following is primarily a laboratory electrode?
p p p p p p p p
A) CSE
p
B) Ag/AgCI
p
C) Calomel
p
D) Zinc - ANS ✓c
p p p p
When doing a structure to electrolyte potential , the structure is connected via th
p p p p p p p p p p p p p
e _____ terminal and the reference is connected via the _____ terminal
p p p p p p p p p p p
A) negative , positive
p p p
B) positive, negative - ANS ✓b
p p p p p
A potential of -0.810Vcse converted to Calomel (SCE)
p p p p p p p p
A) +0.306 sce
p p
B) -0.750 sce
p p
C) -0.735 sce - ANS ✓c
p p p p p
NACE CP2 p
, 3
NAC
A potential of -0.810Vcse converted to Ag/AgCI (SSC)
p p p p p p p p
A) +0.306 ssc
p p
B) -0.735 ssc
p p
C) -0.750 ssc - ANS ✓c
p p p p p
A potential of -0.810Vcse converted to Zinc (ZRE)
p p p p p p p p
A) +0.306 zre
p p
B) -0.735 zre
p p
C) -0.750 zre - ANS ✓a
p p p p p
True or False (t or f)
p p p p p
The potential of a STATIONARY reference electrode should be checked from time
p p p p p p p p p p p p
to time
p
with a portable reference electrode that is known to be accurate under "no
p p p p p p p p p p p p
current" conditions. - ANS ✓t
p p p p
As current is impressed on a metal over time, where does polarization occur?
p p p p p p p p p p p p
A) at the anode and the cathode
p p p p p p
B) at the anode
p p p
C) at the cathode - ANS ✓a
p p p p p p
NACE CP2 p
, 4
NAC
Polarization _____ the potential difference between the anode and the cathode and
p p p p p p p p p p p
by Ohm's Law, the current ___ and the corrosion rate ____ until an equilibrium is r
p p p p p p p p p p p p p p p p
eached
A) lowers, drops, decreases
p p p p
B) increases, increases, decreases
p p p
C) lowers, increases, decreases
p p p
D) lowers, drops, decreases - ANS ✓d
p p p p p p
Depolarizers include: p
I dissolved oxygen
p p p
II microbiological activity
p p
III water flow
p p
A) only I p p
B) only II p p
C) I and II p p p
D) I, II , III - ANS ✓d
p p p p p p p
The name for the current that exists during the steady state of polarization is call
p p p p p p p p p p p p p p
ed the _____ of the system
p p p p p
A) telluric current
p p
B) dynamic current
p p
C) corrosion current
p p
D) mixed potential current
p p p
E) closed current - ANS ✓c
p p p p p
NACE CP2 p
NAC
NACE CP2 - P P
P EXAM QUESTIONS WITH CORRECT VERIFIED SOL
P P P P P
UTIONS 100% GUARANTEED PASS (LATEST UP
P P P P P
DATE)
Most common used reference electrode for measuring potentials of underground
p p p p p p p p p p
structures?
A) CSE
p
B) Ag/AgCI
p
C) Calomel
p
D) Zinc
p
E) SHE - ANS ✓a
p p p p
True or false (t or f)
p p p p p
The potential of a reference electrode in the sun can decrease from 10 to 50mV v
p p p p p p p p p p p p p p p
ersus an electrode kept in the dark? - ANS ✓t
p p p p p p p p p
Which reference electrode is mostly commonly used in seawater?
p p p p p p p p
A) CSE
p
B) Ag/AgCI
p
C) Calomel
p
D) Zinc
p
E) SHE - ANS ✓b
p p p p
NACE CP2
p
, 2
NAC
Which reference electrode is mostly commonly used in concrete structures?
p p p p p p p p p
A) CSE
p
B) Ag/AgCI
p
C) Calomel
p
D) Zinc
p
E) SHE - ANS ✓b
p p p p
Which of the following is primarily a laboratory electrode?
p p p p p p p p
A) CSE
p
B) Ag/AgCI
p
C) Calomel
p
D) Zinc - ANS ✓c
p p p p
When doing a structure to electrolyte potential , the structure is connected via th
p p p p p p p p p p p p p
e _____ terminal and the reference is connected via the _____ terminal
p p p p p p p p p p p
A) negative , positive
p p p
B) positive, negative - ANS ✓b
p p p p p
A potential of -0.810Vcse converted to Calomel (SCE)
p p p p p p p p
A) +0.306 sce
p p
B) -0.750 sce
p p
C) -0.735 sce - ANS ✓c
p p p p p
NACE CP2 p
, 3
NAC
A potential of -0.810Vcse converted to Ag/AgCI (SSC)
p p p p p p p p
A) +0.306 ssc
p p
B) -0.735 ssc
p p
C) -0.750 ssc - ANS ✓c
p p p p p
A potential of -0.810Vcse converted to Zinc (ZRE)
p p p p p p p p
A) +0.306 zre
p p
B) -0.735 zre
p p
C) -0.750 zre - ANS ✓a
p p p p p
True or False (t or f)
p p p p p
The potential of a STATIONARY reference electrode should be checked from time
p p p p p p p p p p p p
to time
p
with a portable reference electrode that is known to be accurate under "no
p p p p p p p p p p p p
current" conditions. - ANS ✓t
p p p p
As current is impressed on a metal over time, where does polarization occur?
p p p p p p p p p p p p
A) at the anode and the cathode
p p p p p p
B) at the anode
p p p
C) at the cathode - ANS ✓a
p p p p p p
NACE CP2 p
, 4
NAC
Polarization _____ the potential difference between the anode and the cathode and
p p p p p p p p p p p
by Ohm's Law, the current ___ and the corrosion rate ____ until an equilibrium is r
p p p p p p p p p p p p p p p p
eached
A) lowers, drops, decreases
p p p p
B) increases, increases, decreases
p p p
C) lowers, increases, decreases
p p p
D) lowers, drops, decreases - ANS ✓d
p p p p p p
Depolarizers include: p
I dissolved oxygen
p p p
II microbiological activity
p p
III water flow
p p
A) only I p p
B) only II p p
C) I and II p p p
D) I, II , III - ANS ✓d
p p p p p p p
The name for the current that exists during the steady state of polarization is call
p p p p p p p p p p p p p p
ed the _____ of the system
p p p p p
A) telluric current
p p
B) dynamic current
p p
C) corrosion current
p p
D) mixed potential current
p p p
E) closed current - ANS ✓c
p p p p p
NACE CP2 p
