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Plating: Quiz
  
  

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Question 1: Gold plating is often used in electronics, to provide a corrosion-resistant electrically conductive layer on ________, typically in electrical connectors and printed circuit boards.
CopperSilverPlatinumPalladium

Question 2: ________ plating is under scrutiny because of the environmental toxicity of the cadmium metal.
SilverGoldZincCadmium

Question 3: It provides sacrificial protection for ________, nickel and other non-ferrous metals, but not for steel.
CopperSilverPalladiumGold

Question 4: The ________-plating process is used extensively to protect both ferrous and nonferrous surfaces.
LeadCopperTinAluminium

Question 5: Metals may also be coated with gold for ornamental purposes, using a number of different processes usually referred to as ________.
Silver-giltGildingAmmoniaSilver

Question 6: Bright chrome imparts a ________-like finish to items such as metal furniture frames and automotive trim.
AluminiumMirrorOpticsGold

Question 7: Tin is also widely used in the ________ industry because of its ability to protect the base metal from oxidation thus preserving its solderability.
EngineeringElectronic engineeringElectrical engineeringElectronics

Question 8: Care should be used for parts exposed to high ________ environments.
WindHumidityWater vaporPrecipitation (meteorology)

Question 9: When the silver layer is porous or contains cracks, the underlying copper undergoes rapid ________, flaking off the plating and exposing the copper itself; a process known as red plague.
ElectrochemistryGalvanic corrosionZincMetal

Question 10: The most common form of chrome plating is the thin, decorative bright chrome, which is typically a 10-µm layer over an underlying ________ plate.
IronNickelPalladiumZinc
















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