Multiple Choice Question (MCQ)

Question: What is the flow rate of argon gas to weld Aluminium of 5.0 mm thickness with filler rod of 3.15 mm?
A. 300 - 340 l/h
B. 340 - 400 l/h
C. 450 - 510 l/h
D. 510 - 570 l/h
Correct Answer: 450 - 510 l/h