It is possible to determine the extent of contamination of a weld with a visual inspection alone.
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Q4: Severe GTA welding porosity is usually only
Q5: Welds with only slight oxide layers are
Q6: The faster that the torch is moved
Q7: The high thermal conductivity of _ rapidly
Q8: When tiny pockets of primarily _ gas
Q10: It is desirable to take the time
Q11: The high surface tension of molten _
Q12: To reduce the possibility of carbide precipitation,
Q13: The surface of a mild steel weld
Q14: Low carbon and _ are two basic
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