GMAW Shielding Gases in Welding
Authored by Ken Clack
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University
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one of the purposes of shielding gases in welding?
Increase atmospheric contamination
Prevent atmospheric contamination
Decrease arc stability
Reduce mechanical properties
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Shielding gases in welding influence which of the following?
Arc stability
Penetration
Bead profile
Spatter
All of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of shielding gases do not chemically react in the arc zone?
Reactive Gases
Inert Gases
Oxygen
Hydrogen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Argon (Ar) is classified as which type of shielding gas?
Reactive Gas
Inert Gas
Both
Neither
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which shielding gas produces a hotter arc and broader, shallower welds?
Argon
Helium
Carbon Dioxide
Oxygen
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxygen (O₂) in shielding gases is limited to what maximum percentage in gas mixes?
10%
20%
50%
100%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of Ionization Potential in the context of shielding gases?
Energy to ionize gas
Amount of gas present in a container
Temperature at which gas condenses
Pressure required to compress gas
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