ABYC CORROSION EXPECTED QUESTIONS WITH
VERIFIED ANSWERS
Question 1.
GFCI stands for...
ANSWER
Ground Fault Circuit Interrupter
Question 2.
T/F A galvanic isolator WILL block stray AC.
ANSWER
False. A galvanic isolator WILL NOT block AC. It will only blocks stray DC that is moving through the
green grounding conductor.
Question 3.
T/F An isolation transformer makes a galvanic isolator unnecessary.
ANSWER
True.
Question 4.
An isolation transformer works through electromagnetic _________.
ANSWER
Induction
Question 5.
A reverse polarity indicator is placed between which two wires? Why?
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.
Question 6.
Bonding wires shall be at least #__ AWG
ANSWER
#8 AWG
1
,Question 7.
Electrolytic corrosion is commonly known as:
ANSWER
Stray-current corrosion
Question 8.
Stray-current corrosion is technically called:
ANSWER
Electrolytic corrosion
Question 9.
Matter can exist as a
ANSWER
Solid, liquid, or gas
Question 10.
Matter is made from
ANSWER
Molecules
Question 11.
Molecules are made of
ANSWER
Atoms
Question 12.
Atoms are made of
ANSWER
protons, neutrons, electrons comprise an atom balance each other.
Question 13.
the outer shell of an atom is called the
ANSWER
Valence shell
2
, Question 14.
When the valence shell of an atom is completely filled, the atom is in its most ______ state.
ANSWER
Stable.
Question 15.
Atoms that have gained or lost an electron are known as
ANSWER
Ions
Question 16.
T/F Ions can have positive or negative charges?
ANSWER
True.
Question 17.
Define Ionization
ANSWER
The process by which an atom or molecule acquires a charge.
Question 18.
What are the two types of chemical bonds?
ANSWER
Covalent and ionic
Question 19.
In covalent bonds, atoms form chemical bonds by _______ electrons.
ANSWER
Sharing. E.g. water, H2O
Question 20.
In ionic bonds, atoms form chemical bonds by _______ electrons.
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.
3
VERIFIED ANSWERS
Question 1.
GFCI stands for...
ANSWER
Ground Fault Circuit Interrupter
Question 2.
T/F A galvanic isolator WILL block stray AC.
ANSWER
False. A galvanic isolator WILL NOT block AC. It will only blocks stray DC that is moving through the
green grounding conductor.
Question 3.
T/F An isolation transformer makes a galvanic isolator unnecessary.
ANSWER
True.
Question 4.
An isolation transformer works through electromagnetic _________.
ANSWER
Induction
Question 5.
A reverse polarity indicator is placed between which two wires? Why?
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.
Question 6.
Bonding wires shall be at least #__ AWG
ANSWER
#8 AWG
1
,Question 7.
Electrolytic corrosion is commonly known as:
ANSWER
Stray-current corrosion
Question 8.
Stray-current corrosion is technically called:
ANSWER
Electrolytic corrosion
Question 9.
Matter can exist as a
ANSWER
Solid, liquid, or gas
Question 10.
Matter is made from
ANSWER
Molecules
Question 11.
Molecules are made of
ANSWER
Atoms
Question 12.
Atoms are made of
ANSWER
protons, neutrons, electrons comprise an atom balance each other.
Question 13.
the outer shell of an atom is called the
ANSWER
Valence shell
2
, Question 14.
When the valence shell of an atom is completely filled, the atom is in its most ______ state.
ANSWER
Stable.
Question 15.
Atoms that have gained or lost an electron are known as
ANSWER
Ions
Question 16.
T/F Ions can have positive or negative charges?
ANSWER
True.
Question 17.
Define Ionization
ANSWER
The process by which an atom or molecule acquires a charge.
Question 18.
What are the two types of chemical bonds?
ANSWER
Covalent and ionic
Question 19.
In covalent bonds, atoms form chemical bonds by _______ electrons.
ANSWER
Sharing. E.g. water, H2O
Question 20.
In ionic bonds, atoms form chemical bonds by _______ electrons.
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.
3
