Multiple Choice Question (MCQ)
Question: How much gas flow rate is required to weld a butt joint with 0.8 mm dia MS filler rod of wire feed rate 3 - 4 m/min at 18 to 20 volts?
A.
to 8 Lpm
B.
8 to 10 Lpm
C.
10 to 12 Lpm
D.
12 to 14 Lpm
Correct Answer: 8 to 10 Lpm