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13 questions from this quiz
Melting & fusing metals to create joints
Welding, brazing, hard soldering
Welding
10-120 amps
Prevents oxygen reaching the hot metal
Acetylene
Adds material to strengthen the joint
875°C
Copper and zinc
Clean surfaces with abrasive paper
Prevents oxidation & helps alloy flow
Metals with low melting points
Hard soldering
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