ABYC CORROSION EXAM 2025
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) | 2025-2026
__________ are electrical conductors in which current is
carried by ions rather than by free electrons. Correct
Answer Electrolytes
The three categories of corrosion are: Correct Answer
Electrochemical, galvanic, and electrolytic
Single-metal corrosion is technically referred to as Correct
Answer Electrochemical corrosion
Electrochemical corrosion is commonly known as Correct
Answer Single-metal corrosion
Galvanic corrosion is sometimes referred to as Correct
Answer Two-metal corrosion or bi-metallic corrosion
Corrosion is often improperly called Correct Answer
Electrolysis.
Electrolysis is what happens to the electrolyte not the
metals involved.
____________ is the destructive alteration of metal by
reachtion with its environment. Correct Answer Corrosion
,When a metal is less noble it is referred to as Correct
Answer Anodic
T/F Anodic metals are least active and are resistant to
corrosion Correct Answer 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 Answer 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 Answer True
The corrosion potential in volts of underwater metals is
typically measured with a Correct Answer Silver-silver
corrode reference electrode.
Electrons move through _______, ions move through
____________. Correct Answer Wires, electrolyte.
pH: A solution with a pH of 9.5 is:
a. Basic
b. Acidic
c. Neutral
d. Answer not provided Correct Answer A: Basic
pH: A solution with a pH of 6.5 is:
, a. Basic
b. Acidic
c. Neutral
d. Answer not provided Correct Answer B: Acidic
What is the building block of matter?
a. Atom
b. Electron
c. Nucleus
d. Proton Correct Answer A: Atom
What is not required to form a galvanic cell?
a. Electrolyte
b. Electrolysis
c. Cathode
d. Anode Correct Answer B: Electrolysis
Matter is classified as a(n)?
a. Element
b. Compound
c. Mixture
d. All of these Correct Answer D: All of these
If an atom's outer shell, the valance ring, is full it's
considered to be:
a. Stable
b. Unstable
c. Negatively charged
d. Positively charged Correct Answer A: Stable
Covalent bonding is a/an:
QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) | 2025-2026
__________ are electrical conductors in which current is
carried by ions rather than by free electrons. Correct
Answer Electrolytes
The three categories of corrosion are: Correct Answer
Electrochemical, galvanic, and electrolytic
Single-metal corrosion is technically referred to as Correct
Answer Electrochemical corrosion
Electrochemical corrosion is commonly known as Correct
Answer Single-metal corrosion
Galvanic corrosion is sometimes referred to as Correct
Answer Two-metal corrosion or bi-metallic corrosion
Corrosion is often improperly called Correct Answer
Electrolysis.
Electrolysis is what happens to the electrolyte not the
metals involved.
____________ is the destructive alteration of metal by
reachtion with its environment. Correct Answer Corrosion
,When a metal is less noble it is referred to as Correct
Answer Anodic
T/F Anodic metals are least active and are resistant to
corrosion Correct Answer 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 Answer 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 Answer True
The corrosion potential in volts of underwater metals is
typically measured with a Correct Answer Silver-silver
corrode reference electrode.
Electrons move through _______, ions move through
____________. Correct Answer Wires, electrolyte.
pH: A solution with a pH of 9.5 is:
a. Basic
b. Acidic
c. Neutral
d. Answer not provided Correct Answer A: Basic
pH: A solution with a pH of 6.5 is:
, a. Basic
b. Acidic
c. Neutral
d. Answer not provided Correct Answer B: Acidic
What is the building block of matter?
a. Atom
b. Electron
c. Nucleus
d. Proton Correct Answer A: Atom
What is not required to form a galvanic cell?
a. Electrolyte
b. Electrolysis
c. Cathode
d. Anode Correct Answer B: Electrolysis
Matter is classified as a(n)?
a. Element
b. Compound
c. Mixture
d. All of these Correct Answer D: All of these
If an atom's outer shell, the valance ring, is full it's
considered to be:
a. Stable
b. Unstable
c. Negatively charged
d. Positively charged Correct Answer A: Stable
Covalent bonding is a/an:
