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ABYC Corrosion Exam Questions and Answers 100% Correct
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ABYC Corrosion Exam Questions and Answers 100% Correct
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ABYC Corrosion Exam Questions and Answers 100%Correct
Define Ionization Correct Ans-The process by which an atom or molecule acquires a
charge.
What are the two types of chemical bonds? Correct Ans-Covalent and ionic
In covalent bonds, atoms form chemical bonds by _______ electrons. Correct Ans-Sharing.
E.g. water, H2O
In ionic bonds, atoms form chemical bonds by _______ electrons. Correct Ans-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 Ans-True
, ABYC Corrosion Exam Questions and Answers 100%
Correct
What is disassociation with regard to electrolyte? Correct Ans-When 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. Correct Ans-Electrolytes
The three categories of corrosion are: Correct Ans-Electrochemical, galvanic, and
electrolytic
Single-metal corrosion is technically referred to as Correct Ans-Electrochemical corrosion
Electrochemical corrosion is commonly known as Correct Ans-Single-metal corrosion
Galvanic corrosion is sometimes referred to as Correct Ans-Two-metal corrosion or bi-
metallic corrosion
Corrosion is often improperly called Correct Ans-Electrolysis.
Electrolysis is what happens to the electrolyte not the metals involved.
, ABYC Corrosion Exam Questions and Answers 100%
Correct
____________ is the destructive alteration of metal by reachtion with its environment.
Correct Ans-Corrosion
When a metal is less noble it is referred to as Correct Ans-Anodic
T/F Anodic metals are least active and are resistant to corrosion Correct Ans-False.
Anodic metals are most active and corrode more easily.
When two metals are immersed in an electrolyte and connected with a wire, electrons will
flow from the _______ to the _________. Correct Ans-Anode (least noble) to cathode
(most noble).
T/F Wood that is wet or damp with seawater will act as an electrolyte and conduct ions.
Correct Ans-True
The corrosion potential in volts of underwater metals is typically measured with a Correct
Ans-Silver-silver corrode reference electrode.
Electrons move through _______, ions move through ____________. Correct Ans-Wires,
electrolyte.
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