AME 7 Q7

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What is galvanic corrosion?

B. Galvanic corrosion is the process of corrosion caused by exposure to high temperatures, leading to the oxidation of metals.

A. Galvanic corrosion occurs when two different metals are in electrical contact and exposed to a common electrolyte, leading to corrosion of the more anodic metal.

C. Galvanic corrosion happens when metals are subjected to mechanical wear, causing localized corrosion and surface damage.

D. Galvanic corrosion results from chemical reactions between metals and non-metallic substances in the environment, causing uniform degradation.

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What is cavitation damage?

D. Cavitation damage happens when metal surfaces are exposed to acidic environments, leading to uniform chemical corrosion.

A. Cavitation damage occurs when metal surfaces are exposed to high temperatures, causing them to become brittle and crack.

B. Cavitation damage results from the formation and collapse of vapor bubbles in a liquid, causing shock waves that erode metal surfaces.

C. Cavitation damage is caused by the gradual wear of metal surfaces due to continuous mechanical abrasion.

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What is stress corrosion?

D. Stress corrosion happens when metal surfaces are exposed to high temperatures, causing thermal degradation and loss of material.

C. Stress corrosion results from the formation of corrosion pits caused by mechanical wear and abrasion.

A. Stress corrosion occurs when metal surfaces experience uniform corrosion due to prolonged exposure to corrosive environments.

B. Stress corrosion is a type of localized corrosion that occurs when metals are subjected to tensile stress in a corrosive environment, leading to cracking and failure.

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What is erosion damage?

D. Erosion damage happens when metal surfaces are exposed to corrosive chemicals, leading to uniform surface degradation.

C. Erosion damage is caused by the formation of corrosion pits due to localized electrochemical reactions on metal surfaces.

A. Erosion damage occurs when metal surfaces are subjected to high temperatures, leading to oxidation and material loss.

B. Erosion damage results from the gradual wearing away of metal surfaces due to the flow of abrasive fluids or particles.

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What is atmospheric corrosion?

C. Atmospheric corrosion results from the contact of metals with acids and bases, leading to chemical corrosion.

B. Atmospheric corrosion occurs when metals are exposed to high temperatures in an industrial setting, leading to oxidation and material loss.

A. Atmospheric corrosion is the degradation of metals caused by exposure to environmental conditions such as rain, humidity, and temperature changes.

D. Atmospheric corrosion is caused by electrical currents passing through metal surfaces, leading to galvanic corrosion.

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