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Explain the following terms: a. Fusion welding b. Electrode c.
Oxidation d. Slag e. Select and describe one fusion welding process. How is heat generated? Why is filler metal added? Describe how the molten metal is protected from oxidation.
Name at least one thermal and one mechanical cutting process. Describe how each one works. Discuss the relative advantages and limitations of each. Demonstrate a knowledge of the risks and hazards associated with welding and cutting, and the steps to be taken to prevent or reduce them. Electric current b.
High temperatures c.