NACE (National Association of Corrosion
Engineers) CP1 Exam TEST NEWEST 2025
ACTUAL EXAM COMPLETE QUESTIONS
AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Atoms
A) Are positively charged particles in the nucleus
B) Are neutral particles in the nucleus
C) Are electrically charged atoms
D) Consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
Protons
A) are positively charged particles in the nucleus
B) are neutral particles in the nucleus
C) are electrically charged atoms
D) consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
Neutrons
A) are positively charged particles in the nucleus
B) are neutral particles in the nucleus
,C) are electrically charged atoms
D) consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
Ions
A) are positively charged particles in the nucleus
B) are neutral particles in the nucleus
C) are electrically charged atoms
D) consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
Anions
A) are composed of two or more atoms, molecules are the smallest unit of a substance with the same specific chemical
properties of that substance
B) are metals that corrode under low and high pH levels
C) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
D) accelerate corrosion of metal pipe in clay environments
E) is an excess of OH-
.
Cation
A) are composed of two or more atoms, molecules are the smallest unit of a substance with the same specific chemical
properties of that substance
B) loss of electrons yielding a positively charged ion
C) is the negative logarithm to the base 10 of the hydrogen ion concentration or
pH = -log[H+]
D) are metals that corrode under low and high pH levels
,E) is an ionized solution capable of conducting electricity.
Molecules
A) is produced when acids dissociate , when cation takes place
B) is the term applied to the loss of one or more electrons from an atom or molecule, which forms a positively charged ion, the
atom or molecule decreases in negative charge (occurs at the anode)
C) are composed of two or more atoms, molecules are the smallest unit of a substance with the same specific chemical
properties of that substance
D) is the deviation from the open circuit potential of an electrode resulting from the passage of current
E) consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
Chemical bonding
A) is the force that holds atoms of molecules together
B) is the division of chemistry that deals with the transfer of electric charge in chemical reactions
C) is the gain of one or more electrons to an atom or molecule, which then forms a negatively charged ion or neutral element
(occurs at the cathode)
D) are particles that carry a negative charge
E) the ratio of metal consumed producing useful cathodic protection current to the total metal consumed
Hydrogen ion H+
A)is the force that holds atoms of molecules together
B) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
C) is produced when acids dissociate , when cation takes place
D) is an excess of H+ ions
E) is an excess of OH-
, Acidic
A) is an excess of OH-
B) is an excess of H+ ions
C) When alkali dissociates, an anion
D) is the division of chemistry that deals with the transfer of electric charge in chemical reactions
E) loss of electrons, yielding a positively charged ion
pH
A) when alkali dissociates, an anion
B) is an excess of OH-
C) is the term applied to the loss of one or more electrons from an atom or molecule, which forms a positively charged ion, the
atom or molecule decreases in negative charge (occurs at the anode)
D) is an ionized solution capable of conducting electricity.
E) is the negative logarithm to the base 10 of the hydrogen ion concentration or
pH = -log[H+]
Hydroxyl ion OH-
A) when alkali dissociate, anion
B) is an excess of OH-
C) is the term applied to the loss of one or more electrons from an atom or molecule, which forms a positively charged ion, the
atom or molecule decreases in negative charge (occurs at the anode)
D) is an ionized solution capable of conducting electricity.
E) is the negative logarithm to the base 10 of the hydrogen ion concentration or
pH = -log[H+]
Engineers) CP1 Exam TEST NEWEST 2025
ACTUAL EXAM COMPLETE QUESTIONS
AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Atoms
A) Are positively charged particles in the nucleus
B) Are neutral particles in the nucleus
C) Are electrically charged atoms
D) Consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
Protons
A) are positively charged particles in the nucleus
B) are neutral particles in the nucleus
C) are electrically charged atoms
D) consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
Neutrons
A) are positively charged particles in the nucleus
B) are neutral particles in the nucleus
,C) are electrically charged atoms
D) consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
Ions
A) are positively charged particles in the nucleus
B) are neutral particles in the nucleus
C) are electrically charged atoms
D) consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
E) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
Anions
A) are composed of two or more atoms, molecules are the smallest unit of a substance with the same specific chemical
properties of that substance
B) are metals that corrode under low and high pH levels
C) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
D) accelerate corrosion of metal pipe in clay environments
E) is an excess of OH-
.
Cation
A) are composed of two or more atoms, molecules are the smallest unit of a substance with the same specific chemical
properties of that substance
B) loss of electrons yielding a positively charged ion
C) is the negative logarithm to the base 10 of the hydrogen ion concentration or
pH = -log[H+]
D) are metals that corrode under low and high pH levels
,E) is an ionized solution capable of conducting electricity.
Molecules
A) is produced when acids dissociate , when cation takes place
B) is the term applied to the loss of one or more electrons from an atom or molecule, which forms a positively charged ion, the
atom or molecule decreases in negative charge (occurs at the anode)
C) are composed of two or more atoms, molecules are the smallest unit of a substance with the same specific chemical
properties of that substance
D) is the deviation from the open circuit potential of an electrode resulting from the passage of current
E) consist of a nucleus and orbiting electrons, the number of protons equals the number of negatively charged electrons
Chemical bonding
A) is the force that holds atoms of molecules together
B) is the division of chemistry that deals with the transfer of electric charge in chemical reactions
C) is the gain of one or more electrons to an atom or molecule, which then forms a negatively charged ion or neutral element
(occurs at the cathode)
D) are particles that carry a negative charge
E) the ratio of metal consumed producing useful cathodic protection current to the total metal consumed
Hydrogen ion H+
A)is the force that holds atoms of molecules together
B) are ions formed by the gaining of electrons and is negatively charged because the number of electrons is greater than the
number of protons
C) is produced when acids dissociate , when cation takes place
D) is an excess of H+ ions
E) is an excess of OH-
, Acidic
A) is an excess of OH-
B) is an excess of H+ ions
C) When alkali dissociates, an anion
D) is the division of chemistry that deals with the transfer of electric charge in chemical reactions
E) loss of electrons, yielding a positively charged ion
pH
A) when alkali dissociates, an anion
B) is an excess of OH-
C) is the term applied to the loss of one or more electrons from an atom or molecule, which forms a positively charged ion, the
atom or molecule decreases in negative charge (occurs at the anode)
D) is an ionized solution capable of conducting electricity.
E) is the negative logarithm to the base 10 of the hydrogen ion concentration or
pH = -log[H+]
Hydroxyl ion OH-
A) when alkali dissociate, anion
B) is an excess of OH-
C) is the term applied to the loss of one or more electrons from an atom or molecule, which forms a positively charged ion, the
atom or molecule decreases in negative charge (occurs at the anode)
D) is an ionized solution capable of conducting electricity.
E) is the negative logarithm to the base 10 of the hydrogen ion concentration or
pH = -log[H+]
