GMAW chapter 4 Exam Questions And
Answers
Gases are used in GMAW to _ the electrode and the weld pool from
the atmosphere, _ heat from the electrode to metal _ the arc
pattern,_ in controlling bead contour and penetration, _ in metal
transfer from the electrode and _ in the cleaning action of the base
material. - - -
correct answer ✅shield, transfer, stabilize, aid, assist, assist
Two inert gases used in the GMAW process are _ and _ - - -
correct answer ✅argon & helium
Two gases used in the GMAW process that are not inert are _ and _
---
correct answer ✅oxygen & carbon dioxide
_ is always used as a part of a gas combination, not as a single gas. -
--
correct answer ✅oxygen
Argon gas is _ than air and tends to form a blanket around the
molten weld pool - - -
correct answer ✅Heavier
Answers
Gases are used in GMAW to _ the electrode and the weld pool from
the atmosphere, _ heat from the electrode to metal _ the arc
pattern,_ in controlling bead contour and penetration, _ in metal
transfer from the electrode and _ in the cleaning action of the base
material. - - -
correct answer ✅shield, transfer, stabilize, aid, assist, assist
Two inert gases used in the GMAW process are _ and _ - - -
correct answer ✅argon & helium
Two gases used in the GMAW process that are not inert are _ and _
---
correct answer ✅oxygen & carbon dioxide
_ is always used as a part of a gas combination, not as a single gas. -
--
correct answer ✅oxygen
Argon gas is _ than air and tends to form a blanket around the
molten weld pool - - -
correct answer ✅Heavier
