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Welding 2

QuestionAnswer
An element or gas with no active properties. Inert
Metal inert gas. MIG
The use of electrodes on each side of two pieces are fused surface-to-surface. Resistance spot welding
An inert gas such as argon or helium or a reactive gas such as CO2. Shielding gas
An element or gas with properties that will actively Combine with other elements at a high temperature. Reactive
MIG welding is the preferred method of repairing vehicles. True
Dip a welding gun in water to cool it only in emergencies. False, water will destroy the torch
Keep work area, equipment, and clothing dry because even a slight amount of moisture can conduct enough electricity to cause sever shock. True
Ultra Violate (UV) Radiation from a welding arc is strong enough to sunburn or blister bare skin. True
Resistance spot welding is used for welding many of the unibody’s thin-gauge sections. True
MIG requires careful setting of electrical components. True
As the arc is struck, a shielding gas is forced around the electrode wire in MIG welding. True
Proper ventilation is important because the arc can reduce oxygen in the breathing zone around a welding activity. False, proper ventilation is important because of fumes and vapors caused by welding.
Check the proper feeding of wire by placing your finger over the contact tip. False, never put your finger over the contact tip
Eyes cannot be hurt by an arc flash at a distance of 10 feet away. False, UV rays can affect eyes as far as 50 ft away.
MIG is necessary for auto collision repair because of the wide use of High Strength Steel (HSS)
The recommended shielding gas for auto collision repair is 75% argon, 25% CO2
Created by: abogner105
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