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The Master Plumber's Toolbag: Ultimate Plumbing Tools Quiz
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What is the purpose of applying flux to a copper pipe joint before soldering?
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Hint
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⚖️
50-50
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Audience
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A
To glue the joint temporarily
B
To clean the metal and prevent oxidation during heating
C
To lower the melting point of the copper
D
To cool the joint after heating
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