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Electrical and Plumbing Rough-In Basics
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When using a knockout punch (such as a Greenlee punch), what is its primary function?
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Hint
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⚖️
50-50
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Audience
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A
To cut clean, round holes in steel electrical boxes or panels
B
To crimp heavy-gauge copper lugs onto battery cables
C
To thread the ends of rigid metal conduit
D
To drive ground rods deep into the earth
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