AMPP CIP LEVEL 1 - Basic Coating Inspector Theory Exam Questions & Answers Already Graded A+

What are Volatile Organic Compounds (VOCs)? - Answer-Chemicals that easily evaporate at room temperature. 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 EnvironmentWhat 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? - Answer-Less noble metal connected to a more noble metal will corrode preferentially. What is localized corrosion? - Answer-Corrosion that occurs in specific areas. What are the types of localized corrosion? - Answer-Pitting and crevice corrosion. Why is localized corrosion concerning? - Answer-Damage is concentrated and can lead to structural failure. What is general corrosion? - Answer-Uniform loss of material over entire surface. How does general corrosion affect the surface? - Answer-Results in general thinning of affected surface. Is general corrosion easy to inspect? - Answer-Yes, it is relatively easy to inspect. Does general corrosion cause catastrophic failure? - Answer-No, it does not cause catastrophic failure. What is inorganic convertible thermosetting? - Answer-Coating that undergoes irreversible chemical changes upon curing. What is inorganic non-convertible thermoplastic? - Answer-Coating that softens upon heating and hardens upon cooling.What are the primary components of a liquid applied coating? - Answer-Pigments and Vehicle (Resin or Binder and Solvent) What is a sacrificial coating system? - Answer-A coating system where a more active metal is applied over a less active metal to act as an anode and protect the underlying metal