GMAW Exam 1 questions well answered to pass graded
A+
1. What happens -turbulence
with too much
welding gas?
-flowmeter (has to be in the vertical position)
2. What is used to
-feet per cubic hour or litres per minute (volume)
mea- sure
shielding gas?
Units? -75 argon 25 carbon dioxide
3. What gas is used -92/8 for high deposition
for welding on -carbon dioxide helps with base metal penetration and spatter
carbon steel?
-DCEP/DCRP
4. What polarity is
used in GMAW?
-controls amps and deposition
5. What does wire -inches per minute
feed speed control?
How is it
measured?
6. Angles - backhand for more base metal penetration
-forehand for flatter and pretty
7. What is the -silicon
primary de-
-creates silicon islands
oxidizer in wire?
8. Tip to work piece - TTW
-the distance fro the edge of the contact tip to the work piece
9. What welding 10. What is the use of shielding gas?
shade should be
used?
1/
8
, GMAW Exam 1 questions well answered to pass graded
A+
- 10
-protect the weld from
atmosphere contamination
-provide reliable arc initiation
and stability
-attect weld appearance and
profile
-influence the mode of metal
transfer
2/
8
A+
1. What happens -turbulence
with too much
welding gas?
-flowmeter (has to be in the vertical position)
2. What is used to
-feet per cubic hour or litres per minute (volume)
mea- sure
shielding gas?
Units? -75 argon 25 carbon dioxide
3. What gas is used -92/8 for high deposition
for welding on -carbon dioxide helps with base metal penetration and spatter
carbon steel?
-DCEP/DCRP
4. What polarity is
used in GMAW?
-controls amps and deposition
5. What does wire -inches per minute
feed speed control?
How is it
measured?
6. Angles - backhand for more base metal penetration
-forehand for flatter and pretty
7. What is the -silicon
primary de-
-creates silicon islands
oxidizer in wire?
8. Tip to work piece - TTW
-the distance fro the edge of the contact tip to the work piece
9. What welding 10. What is the use of shielding gas?
shade should be
used?
1/
8
, GMAW Exam 1 questions well answered to pass graded
A+
- 10
-protect the weld from
atmosphere contamination
-provide reliable arc initiation
and stability
-attect weld appearance and
profile
-influence the mode of metal
transfer
2/
8
