AMPP C3 UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
COMPREHENSIVE STUDY GUIDE FULL
SOLUTION
●● What are solvents?
Answer: Substances that dissolve other substances to form a solution.
●● Why can solvents in coatings be harmful?
Answer: Because they can release VOCs into the air.
●● What are some examples of solvents used in coatings?
Answer: Acetone, toluene, xylene, and ethyl acetate.
●● What are three commonly used galvanic anodes for carbon steel?
Answer: Zinc, Aluminum, and Magnesium
●● What is the effect of temperature on corrosion rate?
Answer: Decrease in temperature decreases corrosion rate.
●● What is an electrolyte?
,Answer: A medium that carries ionic current.
●● What is sacrificial coating?
Answer: A type of coating that becomes the anode of an electrochemical
cell.
●● What is the role of binders in coating?
Answer: Binders form a stable film that retains its properties.
●● What is a barrier coating?
Answer: A coating that interrupts the electrolyte of an electrochemical
cell.
●● What are two environments most susceptible to corrosion?
Answer: Marine Environment, Chemical with High Humidity
Environment
●● What is the direction of electron flow in an oxidation reaction?
Answer: From the anode to the cathode through the metallic path.
●● What is the role of binders?
Answer: Binders bonds pigments together and adhere to surface.
,●● What are solvents?
Answer: Solvents are liquids that dissolve the solid resins.
●● What is the purpose of pigments?
Answer: Pigments hide the substrates, provide decorative color, and
enhance desired properties.
●● What are additives?
Answer: Additives are special purpose ingredients used to enhance the
performance.
●● What are vehicles?
Answer: Vehicles are the liquid portions of the coating.
●● What is corrosion?
Answer: Deterioration of metal or alloy due to electrochemical reaction.
●● What is passivation?
Answer: Layer of oxides on metal surface for corrosion protection.
●● Give an example of a metal that undergoes passivation.
Answer: Stainless steel
, ●● What is an anode?
Answer: The electrode where oxidation occurs.
●● What is a cathode?
Answer: The electrode where reduction occurs.
●● What is a metallic pathway?
Answer: The conductive path for electrons to flow.
●● What are electrolytes?
Answer: Substances that conduct electricity when dissolved in water.
●● What is the function of an electrolyte in corrosion?
Answer: Allows passage of ions in corrosion cell.
●● What is the function of a metallic pathway in corrosion?
Answer: Allows flow of electrons in corrosion cell.
●● What is the galvanic series?
Answer: Listing of metals in order of reactivity.
●● What is the general rule of the galvanic series?
AND CORRECT ANSWERS
COMPREHENSIVE STUDY GUIDE FULL
SOLUTION
●● What are solvents?
Answer: Substances that dissolve other substances to form a solution.
●● Why can solvents in coatings be harmful?
Answer: Because they can release VOCs into the air.
●● What are some examples of solvents used in coatings?
Answer: Acetone, toluene, xylene, and ethyl acetate.
●● What are three commonly used galvanic anodes for carbon steel?
Answer: Zinc, Aluminum, and Magnesium
●● What is the effect of temperature on corrosion rate?
Answer: Decrease in temperature decreases corrosion rate.
●● What is an electrolyte?
,Answer: A medium that carries ionic current.
●● What is sacrificial coating?
Answer: A type of coating that becomes the anode of an electrochemical
cell.
●● What is the role of binders in coating?
Answer: Binders form a stable film that retains its properties.
●● What is a barrier coating?
Answer: A coating that interrupts the electrolyte of an electrochemical
cell.
●● What are two environments most susceptible to corrosion?
Answer: Marine Environment, Chemical with High Humidity
Environment
●● What is the direction of electron flow in an oxidation reaction?
Answer: From the anode to the cathode through the metallic path.
●● What is the role of binders?
Answer: Binders bonds pigments together and adhere to surface.
,●● What are solvents?
Answer: Solvents are liquids that dissolve the solid resins.
●● What is the purpose of pigments?
Answer: Pigments hide the substrates, provide decorative color, and
enhance desired properties.
●● What are additives?
Answer: Additives are special purpose ingredients used to enhance the
performance.
●● What are vehicles?
Answer: Vehicles are the liquid portions of the coating.
●● What is corrosion?
Answer: Deterioration of metal or alloy due to electrochemical reaction.
●● What is passivation?
Answer: Layer of oxides on metal surface for corrosion protection.
●● Give an example of a metal that undergoes passivation.
Answer: Stainless steel
, ●● What is an anode?
Answer: The electrode where oxidation occurs.
●● What is a cathode?
Answer: The electrode where reduction occurs.
●● What is a metallic pathway?
Answer: The conductive path for electrons to flow.
●● What are electrolytes?
Answer: Substances that conduct electricity when dissolved in water.
●● What is the function of an electrolyte in corrosion?
Answer: Allows passage of ions in corrosion cell.
●● What is the function of a metallic pathway in corrosion?
Answer: Allows flow of electrons in corrosion cell.
●● What is the galvanic series?
Answer: Listing of metals in order of reactivity.
●● What is the general rule of the galvanic series?
