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Solder, Sawdust, and Sockets: The Trades Quiz
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What is the primary purpose of applying flux to copper pipes before soldering?
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Hint
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50-50
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Audience
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A
To clean and prevent oxidation of the metal when heated
B
To lower the melting point of the solder
C
To act as an adhesive before heat is applied
D
To cool the pipe quickly after the joint is sealed
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