AMPP CIP LEVEL 1 - Basic Coating Inspector Theory Exam Questions And Answers. Verified and Updated
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AMPP CIP
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AMPP CIP
AMPP CIP LEVEL 1 - Basic Coating
Inspector Theory Exam Questions
And Answers. Verified and Updated.
What are Volatile Organic Compounds (VOCs)? - answerChemicals that easily evaporate at
room temperature.
What are solvents? - answerSubstances that dissolve other substances to form a solution.
...
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM AMPP CIP LEVEL 1 - Basic Coating Inspector Theory Exam Questions And Answers. Verified and Updated. 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 car bon 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 c oating? - 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 a node to the cathode through the metallic path. What is the role of binders? - answer✔✔Binders bonds pigments together and adhere to surface. EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM 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 protec tion. 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 conc erning? - 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. EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM 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. Why is inorganic zinc co mmonly used as a sacrificial coating over mild steel? - answer✔✔Zinc is more active than steel, so it becomes the anode and protects the steel from corrosion. What is the purpose of a barrier coating? - answer✔✔To create a physical barrier between the meta l surface and the corrosive environment, preventing direct contact and corrosion. What is an inhibitive coating? - answer✔✔A coating that releases corrosion inhibitors to slow down or prevent corrosion on the metal surface. How does a sacrificial coating p rovide corrosion control? - answer✔✔By using a more active metal as the coating, it sacrificially corrodes instead of the underlying metal, protecting it from corrosion. What does a well -written coating specification provide? - answer✔✔Clear understanding of project expectations. Where can an inspector find the procedure for mixing a specified coating? - answer✔✔Product data sheet (PDS). What is a product data sheet (PDS)? - answer✔✔Document from manufacturers with valuable product information. What information does a safety data sheet (SDS) provide? - answer✔✔Chemical hazards and safety precautions. What does a specification document tell the contractor? - answer✔✔What and where to do, not how to do it. What is a standard? - answer✔✔Formal docum ent providing guidance for technical procedures. EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM What is an Inspection Test Plan (ITP)? - answer✔✔Quality control tool for ensuring specified requirements are met. What is surface temperature? - answer✔✔Temperature of the surface being coated. How does tem perature affect solvents? - answer✔✔Affects evaporation time and curing rates, leading to defects. What is the minimum and maximum surface temperature for coating? - answer✔✔Minimum: 40°F (5°C), Maximum: 125 °F (40 °C). What should be the substrate temperatu re for coating application? - answer✔✔At least 3 °C or 5°F above the dew point temperature. What are the effects of high air temperature? - answer✔✔Shorter pot life, shorter induction time, and lower viscosity. What are the effects of high air temperature? - answer✔✔Longer cure time, reduced re -coat window, potential re -rusting, and wrinkling of the coating. What are the effects of low air temperature? - answer✔✔Longer pot life, longer induction time, and higher viscosity. What are the effects of low air tem perature? - answer✔✔Amine blush (bloom) and adhesion issues. What is Relative Humidity (RH)? - answer✔✔Amount of water vapor in the air compared to maximum. What is Saturation? - answer✔✔When air contains maximum moisture and condensation forms. How does h igh RH affect coating application? - answer✔✔Causes solvent entrapment and blistering. What is the recommended RH to prevent moisture on the surface? - answer✔✔Below 85%. What is the recommended RH to prevent corrosion? - answer✔✔Below 40%. What does RH st and for? - answer✔✔Relative Humidity How is Relative Humidity calculated? - answer✔✔(amount of water vapor/maximum amount of water vapor air can hold) x 100 What is dew point? - answer✔✔Temperature at which air becomes saturated with water. How does moistu re affect the curing process? - answer✔✔It can interfere with the curing process.
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