Page 1 of 165
NATIONAL ASSOCIATION OF CORROSION
ENGINEERS (NACE) CP1 TESTER EXAM LATEST
UPDATE WITH ALL COMPLETE QUESTIONS AND
CORRECT VERIFIED SOLUTIONS JUST RELEASED
Question: In the equation used to calculate the resistivity using the Wenner 4-pin method, R
represents...(units too) - CORRECT ANSWER✔✔resistance in Ohms
Question: If a resistance of 3.5 Ohms was measured using the Wenner 4-pin method and
spacing between the pins is 2m, what is the resistivity? - CORRECT ANSWER✔✔4398 Ohm-cm
Question: If soil resistivity is 1000 Ohm-cm and the spacing between pins is 1m, what is the
expected resistance measurement? - CORRECT ANSWER✔✔1.59 Ohms
Question: Which is a more active metal?
a) copper rod in copper sulfate solution
b) corroded steel in fresh water
1
SUCCESS!
,Page 2 of 165
c) new steel in fresh water
d) copper sheet in fresh water - CORRECT ANSWER✔✔c
Question: Compared to zinc anodes, magnesium anodes in high resistivty soil
A) will deliver a higher current
B) will deliver a lower current
C) will have a higher efficency
D) are less practical - CORRECT ANSWER✔✔a
Question: If the external circuit resistance of a constant voltage rectifier increases by two
times, what will happen to the current? - CORRECT ANSWER✔✔current will be reduced by half
Question: Test stations are installed for which of the follow purposes?
a) to obtain structure to electrolyte potentials
2
SUCCESS!
,Page 3 of 165
b) to confirm the effectiveness of underground isolating fittings, and to confirm the isolation of
road casings
c) to obtain structure to electrolyte potentials, to confirm the effectiveness of underground
isolating fittings, to confirm the isolation of road casings
d) to obtain structure to electrolyte potentials, to confirm the effectiveness of underground
isolating fittings, to confirm the isolation of road casings, and to measure the amount and
direction of current in a pipeline - CORRECT ANSWER✔✔d
Q:Ohm's Law relates the following... - CORRECT ANSWER✔✔volts, amps, resistance
Question: Resistance to current flow is lowest for
a) low conductivity media
b) small cross sectional area media
c) short length of conductor
d) high resistivity media - CORRECT ANSWER✔✔c
3
SUCCESS!
, Page 4 of 165
Question: In a series circuit
a) voltage drops are always equal
b) total resistance equals the sum of individual resistances
c) current varies through resistors
d) total current is equal to the sum of the current through each resistor - CORRECT
ANSWER✔✔b
Question: According to Ohm's Law, an electrical circuit with a driving voltage of 12 Volts and a
resistance of 10 Ohms produces a current of...(Amps) - CORRECT ANSWER✔✔1.2 A
Question: Kirchoff's Current Law - CORRECT ANSWER✔✔the total current entering a circuit
branch must equal the current leaving the branch
Question: Kirchoff's Voltage Law - CORRECT ANSWER✔✔the sum of the voltage drops in a
series circuit must equal the circuit's total voltage
4
SUCCESS!
NATIONAL ASSOCIATION OF CORROSION
ENGINEERS (NACE) CP1 TESTER EXAM LATEST
UPDATE WITH ALL COMPLETE QUESTIONS AND
CORRECT VERIFIED SOLUTIONS JUST RELEASED
Question: In the equation used to calculate the resistivity using the Wenner 4-pin method, R
represents...(units too) - CORRECT ANSWER✔✔resistance in Ohms
Question: If a resistance of 3.5 Ohms was measured using the Wenner 4-pin method and
spacing between the pins is 2m, what is the resistivity? - CORRECT ANSWER✔✔4398 Ohm-cm
Question: If soil resistivity is 1000 Ohm-cm and the spacing between pins is 1m, what is the
expected resistance measurement? - CORRECT ANSWER✔✔1.59 Ohms
Question: Which is a more active metal?
a) copper rod in copper sulfate solution
b) corroded steel in fresh water
1
SUCCESS!
,Page 2 of 165
c) new steel in fresh water
d) copper sheet in fresh water - CORRECT ANSWER✔✔c
Question: Compared to zinc anodes, magnesium anodes in high resistivty soil
A) will deliver a higher current
B) will deliver a lower current
C) will have a higher efficency
D) are less practical - CORRECT ANSWER✔✔a
Question: If the external circuit resistance of a constant voltage rectifier increases by two
times, what will happen to the current? - CORRECT ANSWER✔✔current will be reduced by half
Question: Test stations are installed for which of the follow purposes?
a) to obtain structure to electrolyte potentials
2
SUCCESS!
,Page 3 of 165
b) to confirm the effectiveness of underground isolating fittings, and to confirm the isolation of
road casings
c) to obtain structure to electrolyte potentials, to confirm the effectiveness of underground
isolating fittings, to confirm the isolation of road casings
d) to obtain structure to electrolyte potentials, to confirm the effectiveness of underground
isolating fittings, to confirm the isolation of road casings, and to measure the amount and
direction of current in a pipeline - CORRECT ANSWER✔✔d
Q:Ohm's Law relates the following... - CORRECT ANSWER✔✔volts, amps, resistance
Question: Resistance to current flow is lowest for
a) low conductivity media
b) small cross sectional area media
c) short length of conductor
d) high resistivity media - CORRECT ANSWER✔✔c
3
SUCCESS!
, Page 4 of 165
Question: In a series circuit
a) voltage drops are always equal
b) total resistance equals the sum of individual resistances
c) current varies through resistors
d) total current is equal to the sum of the current through each resistor - CORRECT
ANSWER✔✔b
Question: According to Ohm's Law, an electrical circuit with a driving voltage of 12 Volts and a
resistance of 10 Ohms produces a current of...(Amps) - CORRECT ANSWER✔✔1.2 A
Question: Kirchoff's Current Law - CORRECT ANSWER✔✔the total current entering a circuit
branch must equal the current leaving the branch
Question: Kirchoff's Voltage Law - CORRECT ANSWER✔✔the sum of the voltage drops in a
series circuit must equal the circuit's total voltage
4
SUCCESS!
