AMPP CIP LEVEL 1 UPDATED ACTUAL QUESTIONS AND CORRECT
ANSWERS
◍ What needs to be present in order for corrosion to occur?
Answer:Anode
Cathode
Metallic Pathway
Electrolyte
◍ What is an anode? Answer:The anode is the area of the metal surface
that corrodes. The metal oxidizes (gains oxygen), causing it to lose mass
and dissolve into the electrolyte.
◍ What is oxidation? Answer:Oxidation is a chemical reaction that
occurs at the anode where the metal loses electrons.
◍ What is a cathode? Answer:The cathode is the area of the metal
surface that reduces (loses oxygen).
◍ What is reduction? Answer:Reduction is a chemical reaction that
occurs at the cathode that involves the metal gaining electrons.
,◍ What is the metallic pathway? Answer:The metallic pathway
connects the anode to the cathode and allows the passage of electrons
generated from the cathode to the anode.
◍ What is an electrolyte? Answer:The electrolyte is the conductive
medium (any solution, like water) in which ions are carried from the
anode to the cathode.
◍ What is a barrier coating? Answer:A barrier coating protects the
substrate/metal by providing a chemical and physical barrier between the
metal surface and the environment.
The barrier coating interrupts the electrolyte of the electrochemical cell.
◍ What is passivation? Answer:Passivation is when a layer of oxides
form on the surface of a metal that provides corrosion protection.
◍ What is the purpose of the electrolyte? Answer:To allow the passage
of ions from the anode to the cathode.
◍ What is a sacrificial coating? Answer:A sacrificial coating is a
coating that contains a metal (usually zinc) that will corrode instead of
the metal substrate.
, ◍ What is an inhibitive coating? Answer:Inhibitive coatings act as aa
barricade to slow down the reaction at the anode, or cathode, or both.
They contain special pigments that react with moisture or oxygen and
form a hard, non-reactive surface film that interferes with the corrosion
process.
◍ What are the 4 basic components of a coating? Answer:Pigments
Binder/Resins
Solvents
Additives
◍ What is are pigments? Answer:Pigments are the solid particles that
give specific protective, mechanical, or decorative qualities to the
coating.
In its unmixed form, pigments are powders.
◍ What are binders/resins? Answer:Binders/resins are liquids that
adhere to the substrate and chemically change (cure) to form a hard,
protective film.
◍ What are solvents? Answer:Solvents are the liquid components of the
coating that are responsible for dissolving the solid binder/resin.
ANSWERS
◍ What needs to be present in order for corrosion to occur?
Answer:Anode
Cathode
Metallic Pathway
Electrolyte
◍ What is an anode? Answer:The anode is the area of the metal surface
that corrodes. The metal oxidizes (gains oxygen), causing it to lose mass
and dissolve into the electrolyte.
◍ What is oxidation? Answer:Oxidation is a chemical reaction that
occurs at the anode where the metal loses electrons.
◍ What is a cathode? Answer:The cathode is the area of the metal
surface that reduces (loses oxygen).
◍ What is reduction? Answer:Reduction is a chemical reaction that
occurs at the cathode that involves the metal gaining electrons.
,◍ What is the metallic pathway? Answer:The metallic pathway
connects the anode to the cathode and allows the passage of electrons
generated from the cathode to the anode.
◍ What is an electrolyte? Answer:The electrolyte is the conductive
medium (any solution, like water) in which ions are carried from the
anode to the cathode.
◍ What is a barrier coating? Answer:A barrier coating protects the
substrate/metal by providing a chemical and physical barrier between the
metal surface and the environment.
The barrier coating interrupts the electrolyte of the electrochemical cell.
◍ What is passivation? Answer:Passivation is when a layer of oxides
form on the surface of a metal that provides corrosion protection.
◍ What is the purpose of the electrolyte? Answer:To allow the passage
of ions from the anode to the cathode.
◍ What is a sacrificial coating? Answer:A sacrificial coating is a
coating that contains a metal (usually zinc) that will corrode instead of
the metal substrate.
, ◍ What is an inhibitive coating? Answer:Inhibitive coatings act as aa
barricade to slow down the reaction at the anode, or cathode, or both.
They contain special pigments that react with moisture or oxygen and
form a hard, non-reactive surface film that interferes with the corrosion
process.
◍ What are the 4 basic components of a coating? Answer:Pigments
Binder/Resins
Solvents
Additives
◍ What is are pigments? Answer:Pigments are the solid particles that
give specific protective, mechanical, or decorative qualities to the
coating.
In its unmixed form, pigments are powders.
◍ What are binders/resins? Answer:Binders/resins are liquids that
adhere to the substrate and chemically change (cure) to form a hard,
protective film.
◍ What are solvents? Answer:Solvents are the liquid components of the
coating that are responsible for dissolving the solid binder/resin.
