ABYC Corrosion Exam 2026 Questions
and Answers
GFCI stands for... - Correct answer-Ground Fault Circuit Interrupter
T/F A galvanic isolator WILL block stray AC. - Correct answer-False. A galvanic
isolator WILL NOT block AC. It will only blocks stray DC that is moving through
the green grounding conductor.
T/F An isolation transformer makes a galvanic isolator unnecessary. - Correct
answer-True.
An isolation transformer works through electromagnetic _________. - Correct
answer-Induction
A reverse polarity indicator is placed between which two wires? Why? - Correct
answer-White neutral and green grounding.
If the black hot and white neutral are reversed, electricity will flow through the
white neutral illuminating the indicator light and leaving through the green
grounding conductor.
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,Bonding wires shall be at least #__ AWG - Correct answer-#8 AWG
Electrolytic corrosion is commonly known as: - Correct answer-Stray-current
corrosion
Stray-current corrosion is technically called: - Correct answer-Electrolytic
corrosion
Matter can exist as a - Correct answer-Solid, liquid, or gas
Matter is made from - Correct answer-Molecules
Molecules are made of - Correct answer-Atoms
Atoms are made of - Correct answer-protons, neutrons, electrons
The atom is electrically - Correct answer-Neutral. That's because the particles that
comprise an atom balance each other.
the outer shell of an atom is called the - Correct answer-Valence shell
When the valence shell of an atom is completely filled, the atom is in its most
______ state. - Correct answer-Stable.
Atoms that have gained or lost an electron are known as - Correct answer-Ions
T/F Ions can have positive or negative charges? - Correct answer-True.
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, Define Ionization - Correct answer-The process by which an atom or molecule
acquires a charge.
What are the two types of chemical bonds? - Correct answer-Covalent and ionic
In covalent bonds, atoms form chemical bonds by _______ electrons. - Correct
answer-Sharing.
E.g. water, H2O
In ionic bonds, atoms form chemical bonds by _______ electrons. - Correct
answer-Giving up or gaining electrons.
The atom giving an electron become a positive ion. The atom gaining an electron
becomes a negative ion. Oppositely charged bodies are attracted to each other,
bonding them together.
E.g. Sodium Chloride, NaCl, table salt.
T/F Atoms in the valence shell are involved in the corrosion process? - Correct
answer-True
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and Answers
GFCI stands for... - Correct answer-Ground Fault Circuit Interrupter
T/F A galvanic isolator WILL block stray AC. - Correct answer-False. A galvanic
isolator WILL NOT block AC. It will only blocks stray DC that is moving through
the green grounding conductor.
T/F An isolation transformer makes a galvanic isolator unnecessary. - Correct
answer-True.
An isolation transformer works through electromagnetic _________. - Correct
answer-Induction
A reverse polarity indicator is placed between which two wires? Why? - Correct
answer-White neutral and green grounding.
If the black hot and white neutral are reversed, electricity will flow through the
white neutral illuminating the indicator light and leaving through the green
grounding conductor.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,Bonding wires shall be at least #__ AWG - Correct answer-#8 AWG
Electrolytic corrosion is commonly known as: - Correct answer-Stray-current
corrosion
Stray-current corrosion is technically called: - Correct answer-Electrolytic
corrosion
Matter can exist as a - Correct answer-Solid, liquid, or gas
Matter is made from - Correct answer-Molecules
Molecules are made of - Correct answer-Atoms
Atoms are made of - Correct answer-protons, neutrons, electrons
The atom is electrically - Correct answer-Neutral. That's because the particles that
comprise an atom balance each other.
the outer shell of an atom is called the - Correct answer-Valence shell
When the valence shell of an atom is completely filled, the atom is in its most
______ state. - Correct answer-Stable.
Atoms that have gained or lost an electron are known as - Correct answer-Ions
T/F Ions can have positive or negative charges? - Correct answer-True.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, Define Ionization - Correct answer-The process by which an atom or molecule
acquires a charge.
What are the two types of chemical bonds? - Correct answer-Covalent and ionic
In covalent bonds, atoms form chemical bonds by _______ electrons. - Correct
answer-Sharing.
E.g. water, H2O
In ionic bonds, atoms form chemical bonds by _______ electrons. - Correct
answer-Giving up or gaining electrons.
The atom giving an electron become a positive ion. The atom gaining an electron
becomes a negative ion. Oppositely charged bodies are attracted to each other,
bonding them together.
E.g. Sodium Chloride, NaCl, table salt.
T/F Atoms in the valence shell are involved in the corrosion process? - Correct
answer-True
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
