GMAW- Applications Chapter 21 Exam
Questions And Answers
Steel from 1/4" to 1/2" thick may be butt welded with no edge
preparation . - - -
correct answer ✅False
The backhand technique is generally used for welding stainless
steel. - - -
correct answer ✅False
Using short circuiting transfer on aluminum produces a colder arc
than is produced with spray transfer. - - -
correct answer ✅True
When using GMAW on aluminum, a lower current than that used
for other metals is required. - - -
correct answer ✅True
A 95% Ar/5% O2 shielding gas mixture provides higher heat input
when welding aluminum between 1" and 2" thick. - - -
correct answer ✅False
Questions And Answers
Steel from 1/4" to 1/2" thick may be butt welded with no edge
preparation . - - -
correct answer ✅False
The backhand technique is generally used for welding stainless
steel. - - -
correct answer ✅False
Using short circuiting transfer on aluminum produces a colder arc
than is produced with spray transfer. - - -
correct answer ✅True
When using GMAW on aluminum, a lower current than that used
for other metals is required. - - -
correct answer ✅True
A 95% Ar/5% O2 shielding gas mixture provides higher heat input
when welding aluminum between 1" and 2" thick. - - -
correct answer ✅False
