(CRI) Certified Radiographic Interpreter Practice Test
(CRI) Certified Radiographic Interpreter CRI Welding Processes & Techniques
What is the main purpose of shielding gas in welding?
Select your answer
A
To cool the weld quickly.
B
To protect the weld pool from oxygen and nitrogen.
C
To add color to the weld.
D
To heat the base metal.
Need a hint?
