GMAW/FCAW
What is the common shielding gas used in GMAW?
C 25 mix/
Argon or a mixture of argon and carbon dioxide.
What is the primary shielding gas for SMAW?
Answer: None; it uses a flux coating on the electrode to provide shielding.
100 Points: What is the best way to test for gas cylinder leaks?
Soapy water
The dimension line usually specifies.
Size and location.
Carbon arc cutting perduces large amount of
Fumes and sparks
Describe the main difference between GMAW and FCAW.
GMAW uses a continuously fed wire and external shielding gas, while FCAW
What is the function of the flux in SMAW?
To protect the molten weld from contamination.
What is a safe practice used in preventing welding fires?
Store fuels in approved containers.
An Orthographic drawing is.
is a flat view
What is used to in air carbon arc cutting
Compressed Air
What is the nonmetallic product formed during FCAW called?
Answer: C. Slag.
What is the primary shielding gas for GTAW?
Argon
Why is dark clothing preferred during welding operations?
To minimize arc reflection.
Two main types of drawings are.
Isometric and Orthographic
what can help prevent smoke and fumes build up in the shop
exhuast fan sytem
What does FCAW stand for?
Flux Cored Arc Welding.
In GTAW its concendered a non consumable
What is Tungsten
What is the least severe type of burn?
A. First degree burn.
long break line tell you
to long to scale on drawing
Pinholes in your weld
what is perosity
What type of drive rollers are needed for FCAW
Knurled
AC polarirty is in GTAW for what
Aluminium welding
What should be worn when entering the welding laboratory?
Safety glasses.
added note on a welding symbol
Tail
checking for leaks arround gas cylinder bottles
soapy water