Author Question: Using a ________ technique with GMAW is avoided because it draws atmosphere into the arc, which ... (Read 16 times)

fagboi · **on:** Jul 27, 2018

Using a ________ technique with GMAW is avoided because it draws atmosphere into the arc, which contaminates the weld.

A) backhand B) forehand C) Weave D) All of the above

Question 2

Which style of burner usually operates with a higher flue gas CO2 percentage?

A) The CO2 should be around 12 with all oil burners
B) Newer gun burners
C) Older gun burners
D) Flame retention burners