New Mexico ES-2J Journeyman Cathodic Protection and Lightning Protection Systems
Exam QUESTIONS AND CORRECT ANSWERS WITH RATIONALES
Exam coverage
• cathodic protection principles
• anodes and cathodes
• rectifiers
• bonding
• corrosion control
• lightning protection
• grounding electrodes
• conductors
• testing
• safety
,1. Which explanation best connects the technical requirement with its practical purpose
when Cathodic protection reduces corrosion by controlling the electrochemical
behavior of a protected structure.. Which answer best applies to the underlying ES-2J
cathodic and lightning protection concept in this situation?
A. Bonding and grounding provide intentional electrical paths and help control potential
differences..
B. Cathodic protection reduces corrosion by controlling the electrochemical behavior of a
protected structure..
C. Anodes provide a source of current in galvanic or impressed-current protection systems..
D. Rectifiers convert electrical power to controlled direct current in impressed-current
systems..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Cathodic protection
reduces corrosion by controlling the electrochemical behavior of a protected structure.. The
alternatives address related topics but do not directly answer the issue being tested.
2. An inspection reveals this condition; which action is supported by the principle that
Anodes provide a source of current in galvanic or impressed-current protection
systems.. Which answer best applies to the underlying ES-2J cathodic and lightning
protection concept in this situation?
A. Bonding and grounding provide intentional electrical paths and help control potential
differences..
,B. Anodes provide a source of current in galvanic or impressed-current protection systems..
C. Rectifiers convert electrical power to controlled direct current in impressed-current
systems..
D. Corrosion control requires understanding the protected metal, electrolyte, electrical
connections, and current path..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Anodes provide a source
of current in galvanic or impressed-current protection systems.. The alternatives address
related topics but do not directly answer the issue being tested.
3. Which option demonstrates the most accurate understanding of how Rectifiers
convert electrical power to controlled direct current in impressed-current systems..
Which answer best applies to the underlying ES-2J cathodic and lightning protection
concept in this situation?
A. Corrosion control requires understanding the protected metal, electrolyte, electrical
connections, and current path..
B. Bonding and grounding provide intentional electrical paths and help control potential
differences..
C. Lightning protection provides conductive paths intended to safely manage lightning current..
D. Rectifiers convert electrical power to controlled direct current in impressed-current
systems..
, Correct answer: D
Rationale: The correct choice directly states the governing principle: Rectifiers convert
electrical power to controlled direct current in impressed-current systems.. The alternatives
address related topics but do not directly answer the issue being tested.
4. When diagnosing or planning work, which statement is most accurate about Bonding
and grounding provide intentional electrical paths and help control potential
differences.. Which answer best applies to the underlying ES-2J cathodic and lightning
protection concept in this situation?
A. Bonding and grounding provide intentional electrical paths and help control potential
differences..
B. Lightning protection provides conductive paths intended to safely manage lightning current..
C. Grounding electrodes must be suitable for the system and installed to provide effective
grounding..
D. Corrosion control requires understanding the protected metal, electrolyte, electrical
connections, and current path..
Correct answer: A
Rationale: The correct choice directly states the governing principle: Bonding and grounding
provide intentional electrical paths and help control potential differences.. The alternatives
address related topics but do not directly answer the issue being tested.
Exam QUESTIONS AND CORRECT ANSWERS WITH RATIONALES
Exam coverage
• cathodic protection principles
• anodes and cathodes
• rectifiers
• bonding
• corrosion control
• lightning protection
• grounding electrodes
• conductors
• testing
• safety
,1. Which explanation best connects the technical requirement with its practical purpose
when Cathodic protection reduces corrosion by controlling the electrochemical
behavior of a protected structure.. Which answer best applies to the underlying ES-2J
cathodic and lightning protection concept in this situation?
A. Bonding and grounding provide intentional electrical paths and help control potential
differences..
B. Cathodic protection reduces corrosion by controlling the electrochemical behavior of a
protected structure..
C. Anodes provide a source of current in galvanic or impressed-current protection systems..
D. Rectifiers convert electrical power to controlled direct current in impressed-current
systems..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Cathodic protection
reduces corrosion by controlling the electrochemical behavior of a protected structure.. The
alternatives address related topics but do not directly answer the issue being tested.
2. An inspection reveals this condition; which action is supported by the principle that
Anodes provide a source of current in galvanic or impressed-current protection
systems.. Which answer best applies to the underlying ES-2J cathodic and lightning
protection concept in this situation?
A. Bonding and grounding provide intentional electrical paths and help control potential
differences..
,B. Anodes provide a source of current in galvanic or impressed-current protection systems..
C. Rectifiers convert electrical power to controlled direct current in impressed-current
systems..
D. Corrosion control requires understanding the protected metal, electrolyte, electrical
connections, and current path..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Anodes provide a source
of current in galvanic or impressed-current protection systems.. The alternatives address
related topics but do not directly answer the issue being tested.
3. Which option demonstrates the most accurate understanding of how Rectifiers
convert electrical power to controlled direct current in impressed-current systems..
Which answer best applies to the underlying ES-2J cathodic and lightning protection
concept in this situation?
A. Corrosion control requires understanding the protected metal, electrolyte, electrical
connections, and current path..
B. Bonding and grounding provide intentional electrical paths and help control potential
differences..
C. Lightning protection provides conductive paths intended to safely manage lightning current..
D. Rectifiers convert electrical power to controlled direct current in impressed-current
systems..
, Correct answer: D
Rationale: The correct choice directly states the governing principle: Rectifiers convert
electrical power to controlled direct current in impressed-current systems.. The alternatives
address related topics but do not directly answer the issue being tested.
4. When diagnosing or planning work, which statement is most accurate about Bonding
and grounding provide intentional electrical paths and help control potential
differences.. Which answer best applies to the underlying ES-2J cathodic and lightning
protection concept in this situation?
A. Bonding and grounding provide intentional electrical paths and help control potential
differences..
B. Lightning protection provides conductive paths intended to safely manage lightning current..
C. Grounding electrodes must be suitable for the system and installed to provide effective
grounding..
D. Corrosion control requires understanding the protected metal, electrolyte, electrical
connections, and current path..
Correct answer: A
Rationale: The correct choice directly states the governing principle: Bonding and grounding
provide intentional electrical paths and help control potential differences.. The alternatives
address related topics but do not directly answer the issue being tested.
