When welding aluminum pipe in the 2G position with GMAW, run the ...

[Engineer]

When welding aluminum pipe in the 2G position with GMAW, run the remaining passes using a slight
  side-to-side motion to _____.
 
  a. keep the weld pool small
  b. prevent weld puddle sagging
  c. ensure fusion at the toes
  d. help cool the crater

Question 2

When using GMAW on aluminum pipe in the 1G-ROTATED position, the work angle for the root pass
  should be _____.
 
  a. 0 degrees
  b. 30 degrees
  c. 45 degrees
  d. 75 degrees

[ebenov]

Answer to Question 1

c

Answer to Question 2

a

[Engineer]

TYSM

[ashely1112]

Thanks for the timely response, appreciate it