The learner will identify what causes discontinuities within the GMAW process.
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Heat input too high causes ________________.
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Correct!
Heat input too high causes ________________.
Correct Answer
weld metal cracks
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
Heat input too high causes ________________.
Your Answer
Correct Answer
weld metal cracks
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Gas contamination causes __________________.
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
Gas contamination causes __________________.
Your Answer
Correct Answer
porosity
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Excessive welding amperage causes ________________.
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Correct!
Excessive welding amperage causes ________________.
Correct Answer
undercutting
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
Excessive welding amperage causes ________________.
Your Answer
Correct Answer
undercutting
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Inadequate welding current causes ______________.
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Correct!
Inadequate welding current causes ______________.
Correct Answer
incomplete joint penetration
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
Inadequate welding current causes ______________.
Your Answer
Correct Answer
incomplete joint penetration
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
What most likely causes difficult arc starting?
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Correct!
What most likely causes difficult arc starting?
Correct Answer
Wrong polarity
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
What most likely causes difficult arc starting?
Your Answer
Correct Answer
Wrong polarity
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
What most likely causes electrode wire feeds, but is not energized?
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Correct!
What most likely causes electrode wire feeds, but is not energized?
Correct Answer
Poor workpiece connection
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
What most likely causes electrode wire feeds, but is not energized?
Your Answer
Correct Answer
Poor workpiece connection
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
What most likely causes irregular wire feed and burn-back?
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Correct!
What most likely causes irregular wire feed and burn-back?
Correct Answer
Contact tube plugged or worn
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
What most likely causes irregular wire feed and burn-back?
Your Answer
Correct Answer
Contact tube plugged or worn
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
What most likely causes wire feeds, but no gas flows?
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Correct!
What most likely causes wire feeds, but no gas flows?
Correct Answer
Gas cylinder valve closed
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
What most likely causes wire feeds, but no gas flows?
Your Answer
Correct Answer
Gas cylinder valve closed
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
What most likely causes porosity in the weld bead?
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Correct!
What most likely causes porosity in the weld bead?
Correct Answer
Gas cylinder valve closed
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
What most likely causes porosity in the weld bead?
Your Answer
Correct Answer
Gas cylinder valve closed
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
What most likely causes the wire feed motor to operate, but the wire does not feed?
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Correct!
What most likely causes the wire feed motor to operate, but the wire does not feed?
Correct Answer
Incorrect wire feed rolls
Question 1 of 10
GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2
Incorrect
What most likely causes the wire feed motor to operate, but the wire does not feed?
Your Answer
Correct Answer
Incorrect wire feed rolls
Question 1 of 10
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- Last Updated
- 7/30/2015
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GMAW: Inspection & Quality Control for Stainless Steel and Aluminum Set 2 by Fox Valley Technical College is licensed under a Creative Commons Attribution 3.0 Unported License.