NACE CP1 STUDY EXAMINATION TEST 2026
FULL QUESTIONS AND CORRECT SOLUTIONS
◉ If the slowest step in the overall process involves waiting for
arrival of reactants or the removal of reaction products, the reaction
is under __________ control.
A) activation polarization
B) concentration polarization. Answer: b
◉ If the slowest step in the overall reaction process is is on the metal
surface or in the charge transfer reaction the process is under _____
A) activation polarization
B) concentration polarization. Answer: a
◉ __________ usually predominates in electrolytes where the
concentration of the reactants is low, as with dilute solutions, or
there is a
buildup of reaction products from activation polarization or in
stagnant
environments.
,A) activation polarization
B) concentration polarization. Answer: b
◉ As polarization ____ , current _____
A) increases, decreases
B) decreases, decreases
C) increases, increases
D) decreases, increases. Answer: c
◉ An increase in ions will result in a ____ in resistivity
A) increase
B) decrease. Answer: b
◉ The effect of current concentrated on a small area will be ____ than
the effect of
the same amount of current on a ____ area. A coated structure will
polarize more rapidly than a bare structure
,A) larger, larger
B) less, larger
C) greater, smaller
D) smaller, smaller
E) greater, larger. Answer: e
◉ True or False (t or f)
A small anode and a large cathode is desirable. Answer: f
◉ A(n) ____ in temperature has a tendency to ____ chemical reactions,
which _____ the electrodes and _____ current
A) increase, increase, depolarizes, increases
B) increase, increase, depolarizes, decrease
C) decrease, decrease, polarize, increase
D) decrease, increase, polarize, decrease. Answer: a
◉ A(n) ____ in temperature results in a(n) ____ in polarization
A) increase, decrease
B) increase, increase
, C) decrease, increase
D) decrease, decrease. Answer: c
◉ ____ movement results in a ____ in polarization and a(n) _____ in
current
A) decreased, decrease, decrease
B) decreased, increase, decrease
C) increased, increase, decrease
D) increased, decrease, decrease
E) increased, increase, increase. Answer: d
◉ A(n) _____ in the metal ion concentration of the anode metal
results in a(n) ____ in polarization of the anode and a(n) ____ in
current
A) increase, decrease, decrease
B) decrease, decrease, decrease
C) decrease, increase, decrease
D) increase, increase, decrease
E) decrease, decrease, increase. Answer: e
FULL QUESTIONS AND CORRECT SOLUTIONS
◉ If the slowest step in the overall process involves waiting for
arrival of reactants or the removal of reaction products, the reaction
is under __________ control.
A) activation polarization
B) concentration polarization. Answer: b
◉ If the slowest step in the overall reaction process is is on the metal
surface or in the charge transfer reaction the process is under _____
A) activation polarization
B) concentration polarization. Answer: a
◉ __________ usually predominates in electrolytes where the
concentration of the reactants is low, as with dilute solutions, or
there is a
buildup of reaction products from activation polarization or in
stagnant
environments.
,A) activation polarization
B) concentration polarization. Answer: b
◉ As polarization ____ , current _____
A) increases, decreases
B) decreases, decreases
C) increases, increases
D) decreases, increases. Answer: c
◉ An increase in ions will result in a ____ in resistivity
A) increase
B) decrease. Answer: b
◉ The effect of current concentrated on a small area will be ____ than
the effect of
the same amount of current on a ____ area. A coated structure will
polarize more rapidly than a bare structure
,A) larger, larger
B) less, larger
C) greater, smaller
D) smaller, smaller
E) greater, larger. Answer: e
◉ True or False (t or f)
A small anode and a large cathode is desirable. Answer: f
◉ A(n) ____ in temperature has a tendency to ____ chemical reactions,
which _____ the electrodes and _____ current
A) increase, increase, depolarizes, increases
B) increase, increase, depolarizes, decrease
C) decrease, decrease, polarize, increase
D) decrease, increase, polarize, decrease. Answer: a
◉ A(n) ____ in temperature results in a(n) ____ in polarization
A) increase, decrease
B) increase, increase
, C) decrease, increase
D) decrease, decrease. Answer: c
◉ ____ movement results in a ____ in polarization and a(n) _____ in
current
A) decreased, decrease, decrease
B) decreased, increase, decrease
C) increased, increase, decrease
D) increased, decrease, decrease
E) increased, increase, increase. Answer: d
◉ A(n) _____ in the metal ion concentration of the anode metal
results in a(n) ____ in polarization of the anode and a(n) ____ in
current
A) increase, decrease, decrease
B) decrease, decrease, decrease
C) decrease, increase, decrease
D) increase, increase, decrease
E) decrease, decrease, increase. Answer: e
