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ABYC Corrosion Questions and Answers Graded A+ Questions with complete Answers
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ABYC Corrosion Questions andAnswers Graded A+
GFCI stands for... - answer Ground Fault Circuit Interrupter
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.
T/F An isolation transformer makes a galvanic isolator unnecessary. - answer True.
An isolation transformer works through electromagnetic _________. - answer Induction
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.
Bonding wires shall be at least #__ AWG - answer#8 AWG
Electrolytic corrosion is commonly known as: - answerStray-current corrosion
Stray-current corrosion is technically called: - answerElectrolytic corrosion
Matter can exist as a - answerSolid, liquid, or gas
Matter is made from - answerMolecules
Molecules are made of - answerAtoms
Atoms are made of - answerprotons, neutrons, electrons
The atom is electrically - answerNeutral. That's because the particles that comprise an
atom balance each other.
the outer shell of an atom is called the - answerValence shell
, When the valence shell of an atom is completely filled, the atom is in its most ______
state. - answerStable.
Atoms that have gained or lost an electron are known as - answerIons
T/F Ions can have positive or negative charges? - answerTrue.
Define Ionization - answerThe process by which an atom or molecule acquires a
charge.
What are the two types of chemical bonds? - answerCovalent and ionic
In covalent bonds, atoms form chemical bonds by _______ electrons. - answerSharing.
E.g. water, H2O
In ionic bonds, atoms form chemical bonds by _______ electrons. - answerGiving 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? - answerTrue
What is disassociation with regard to electrolyte? - answerWhen an ionic substance
(like sodium chloride, table salt) is immersed in water it disassociates, or separates, into
positive and negative ions.
__________ are electrical conductors in which current is carried by ions rather than by
free electrons. - answerElectrolytes
The three categories of corrosion are: - answerElectrochemical, galvanic, and
electrolytic
Single-metal corrosion is technically referred to as - answerElectrochemical corrosion
Electrochemical corrosion is commonly known as - answerSingle-metal corrosion
Galvanic corrosion is sometimes referred to as - answerTwo-metal corrosion or bi-
metallic corrosion
Corrosion is often improperly called - answerElectrolysis.
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