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 Wha t 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 th e 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 gaining 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 conduct ive 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 th e 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 zinc) 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 oxygen and form a hard, non -reactive su rface 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 that give specific protective, mechani cal, 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 solv ents? - 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 performance or certain properties or character istics 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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