Safety Requirements For Semi-automatic Welding Processes Flashcards
1
Q
How close is high concentrations of nitrogen dioxide found from the welding arc?
A
150mm (6 in.)
2
Q
How does to the welding plume can you find carbon monoxide and what happens to it after this distance?
A
75 to 100mm (3 to 4in.) After this distance the carbon monoxide oxidizes to carbon dioxide
3
Q
What filter lens shades should be used for GMAW and FCAW?
A
10 to 12
