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Welding Basics Quiz - Most People Don't Know These Essential Welding Fundamentals
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What is the critical function of the 'ground clamp' (or work clamp) in arc welding?
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Hint
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50-50
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Audience
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A
To act as a heat sink and keep the metal cool
B
To mechanically hold the two pieces of metal closely together
C
To complete the electrical circuit so the arc can form
D
To continuously inject shielding gas over the workpiece
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