NACE CP2 EXAM (ACTUAL 2024-2025) UPDATED
QUESTIONS WITH DETAILED 100% CORRECT
ANSWERS
The amount of energy required by a metal during the refining
process determines the or of the metal.
A) current, active state
B) voltage, active state
C) active resistance, voltage
D) resistance, active state
E) current, active resistance - ANSWERS_b
Single phase rectifier that has has 1 diodes
A) single-phase
B) full-wave
C) center-tapped - ANSWERS_a
When taking soil resistivity measurements along a structure,itis
good practice to place the line of pins to the
structure, with the nearest pin no closer than ft from the
structure
A) parallel, 20 ft
B) parallel, 10ft
C) perpendicular, 20ft
D) perpendicular, 15ft - ANSWERS_d
, NACE CP2 EXAM (ACTUAL 2024-2025) UPDATED
QUESTIONS WITH DETAILED 100% CORRECT
ANSWERS
Layer Resistivity
1) S 2 layer = 318.2 cm - 159.1 cm =159.1 cm
2) R 2 layer = (R 1 R 2 ) / (R1 - R2 ) = 28.46ohms
3) 2 π x 159.1cm x 28.46 Ω
= 28,450ohms-cm - ANSWERS_
The soil box measures a or resistivity of a relatively
small soil sample
A) maximum
B) minimum - ANSWERS_b
True or False (t or f)
One advantage of the single rod method for measuring resistivity
of soil is that it can be employed in confined spacessuch as next to
tanks and between pipes - ANSWERS_t
What is the formula for resistivity
, NACE CP2 EXAM (ACTUAL 2024-2025) UPDATED
QUESTIONS WITH DETAILED 100% CORRECT
ANSWERS
A) p= (L*A)/(R)
B) p = (R*A)/(L)
C) p = (X*A)/(R) - ANSWERS_b
Electrical continuity of concrete rebar structures can be
evaluated using a resistance of less than
indicates continuity
A) DC-resistance measurements, 0.100 ohms
B) AC-resistance measurements, 0.100ohms - ANSWERS_b
Single phase rectifier that has 2 diodes
A) single-phase
B) full-wave
C) center-tapped - ANSWERS_c
Which rectifier is the standard most often used
A) single-phase
B) full-wave
, NACE CP2 EXAM (ACTUAL 2024-2025) UPDATED
QUESTIONS WITH DETAILED 100% CORRECT
ANSWERS
C) center-tapped - ANSWERS_b
Three phase rectifier that has 3 diodes
A) single-phase
B) wye
C) center-tapped
D) full-wave - ANSWERS_b
Three phase rectifier that has 6 diodes
A) single-phase
B) full-wave
C) center-tapped
D) wye - ANSWERS_b
True or False (t or f) In
regards to rectifiers:
single-phase units are more efficient than three-phase units -
ANSWERS_f
The theoretical maximum efficiency for a three-
QUESTIONS WITH DETAILED 100% CORRECT
ANSWERS
The amount of energy required by a metal during the refining
process determines the or of the metal.
A) current, active state
B) voltage, active state
C) active resistance, voltage
D) resistance, active state
E) current, active resistance - ANSWERS_b
Single phase rectifier that has has 1 diodes
A) single-phase
B) full-wave
C) center-tapped - ANSWERS_a
When taking soil resistivity measurements along a structure,itis
good practice to place the line of pins to the
structure, with the nearest pin no closer than ft from the
structure
A) parallel, 20 ft
B) parallel, 10ft
C) perpendicular, 20ft
D) perpendicular, 15ft - ANSWERS_d
, NACE CP2 EXAM (ACTUAL 2024-2025) UPDATED
QUESTIONS WITH DETAILED 100% CORRECT
ANSWERS
Layer Resistivity
1) S 2 layer = 318.2 cm - 159.1 cm =159.1 cm
2) R 2 layer = (R 1 R 2 ) / (R1 - R2 ) = 28.46ohms
3) 2 π x 159.1cm x 28.46 Ω
= 28,450ohms-cm - ANSWERS_
The soil box measures a or resistivity of a relatively
small soil sample
A) maximum
B) minimum - ANSWERS_b
True or False (t or f)
One advantage of the single rod method for measuring resistivity
of soil is that it can be employed in confined spacessuch as next to
tanks and between pipes - ANSWERS_t
What is the formula for resistivity
, NACE CP2 EXAM (ACTUAL 2024-2025) UPDATED
QUESTIONS WITH DETAILED 100% CORRECT
ANSWERS
A) p= (L*A)/(R)
B) p = (R*A)/(L)
C) p = (X*A)/(R) - ANSWERS_b
Electrical continuity of concrete rebar structures can be
evaluated using a resistance of less than
indicates continuity
A) DC-resistance measurements, 0.100 ohms
B) AC-resistance measurements, 0.100ohms - ANSWERS_b
Single phase rectifier that has 2 diodes
A) single-phase
B) full-wave
C) center-tapped - ANSWERS_c
Which rectifier is the standard most often used
A) single-phase
B) full-wave
, NACE CP2 EXAM (ACTUAL 2024-2025) UPDATED
QUESTIONS WITH DETAILED 100% CORRECT
ANSWERS
C) center-tapped - ANSWERS_b
Three phase rectifier that has 3 diodes
A) single-phase
B) wye
C) center-tapped
D) full-wave - ANSWERS_b
Three phase rectifier that has 6 diodes
A) single-phase
B) full-wave
C) center-tapped
D) wye - ANSWERS_b
True or False (t or f) In
regards to rectifiers:
single-phase units are more efficient than three-phase units -
ANSWERS_f
The theoretical maximum efficiency for a three-
