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