1) ln machining, what does EDM stand for? a) Electrical Discharge Machining b) An electric arc c) lt must be ionized 2) What alternative term can be used instead of EDM? a) Electrical Discharge Machining b) Spark erosion c) lt must be ionized 3) What type of tool is used in both flame-cutting and plasma cutting? a) lt must be ionized b) A torch 4) What source of heat is used in both EDM and plasma cutting? a) A laser b) An electric arc 5) What needs to happen to a gas in order to turn it into plasma? a) lt must be ionized b) Electrical Discharge Machining 6) What term refers to concentrated light that can be hot enough to cut material? a) A laser b) Spark erosion 7) What term refers to an area of material that has been changed by high temperature? a) Heat-affected zone (HAZ) b) Spark erosion

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