Smaw/torch Flashcards
For module projects how long should the tacks be
1/4 “ to 3/8 “
What indicates complete penetration when doing a 6010 root
Continuous keyhole
What happens when doing a 4g root with too much manipulative movement?
Incomplete penetration
What is the spacing between the plates for the 4gf test
1/2”
What are the stop/starts on the root of the 4gf weld
Filled 4.5” from the start
Groove 1.5 from the start
Where is the 1st pass on the 4gf weld
On the junction that forms a 90 degree angle.ie the fillet
What 3 methods can you use to remove the backing strip
Pac
Cac-a
Mechanical
Where is the 2g position in the 5g -2g project
In one of the top quarters of the pipe assembly
What is the purpose of staggering the stop/start locations on the 2g-5g project
Prevents chances of aligning lack of fusion or porosity
Why is downhill preferred for underground pipeline applications
Faster on wall thickness less than 1/2”
What technique is recommended for downhill on pipe
Drag technique
How long do you have to wait to retest a qualification initial test
1 month unless permitted earlier by a safety codes officer
Whats the minimum amount of chromium nessisary to call it a stainless steel
10 percent
What type of stainless is face centered cubic (FCC)
Ausrenic
What type of stainless is bcc at room temp but can’t be hardened
Ferritic
ASME stands for? Responsible for?
American society of mechanical engineers
Aws stands for? Responsible for?
American welding society
IIW stands for? Is responsible for?
International institute fir welding
SCC stands for? Is responsible for?
standards council of Canada
