AMPP CIP Level 1 Theory Exam Questions And Answers. Verified and Updated.
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Course
AMPP CIP
Institution
AMPP CIP
AMPP CIP Level 1 Theory Exam Questions
And Answers. Verified and Updated.
What is corrosion? - answerThe deterioration of a metal or alloy that results from an
electrochemical reaction with its environment.
What needs to be present in order for corrosion to occur? - answerAnode
Cathode
Metall...
EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM AMPP CIP Level 1 Theory Exam Questions And Answers. Verified and Updated. What is corrosion? - answer✔✔The deterioration of a metal or alloy that results from an electrochemical reaction with its environment. 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 gainin g 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. EXAM STUDY MATERIALS July 24, 2024 1:33:58 PM 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 zi nc) 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 ox ygen 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 t hat 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. What are additives? - answer✔✔Additives are special ingredients used to enhance the performan ce or certain properties or characteristics of coatings. They are commonly liquid components that are added in small amounts. Which 3 materials are commonly used as galvanic anodes for carbon steel? - answer✔✔Zinc Magnesium Aluminum How does high or low temperature affect the corrosion rate? - answer✔✔High temp = corrosion rate increases
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