Answer: Wrought iron
Answer: 5500oC
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Answer: Electrode holder is connected to the positive and work to negative
Answer: A fine spray of metal
Answer: Combustible electrodes and argon in combination with a.c. current
Answer: No-combustible electrode in combination with helium and d.c. current
Answer: A process which uses a mixture of iron oxide and granular aluminium
Answer: Accomplished by maintaining a hot molten metal pool between plates
Answer: A process in which arc is maintained under a blanket of flux
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