GMAW filler metals/shielding gas 203b exam
questions and answers
Silicon, aluminum and manganese, when added to B-G 49A 3 C G2
are used as: - - -
correct answer ✅deoxidizers.
With GMAW wire, cast refers to the: - - -
correct answer ✅circle formed by one wrap of the wire.
Describe the helix of a wire and the effect that it may have on
welding. - - -
correct answer ✅Helix is the result of a natural twisting action of
the wire during forming. If the helix of the wire is excessive, the
wire does not exit out of the contact tip. This in turn can cause the
wire to waunder. The arc becomes unstable as this corkscrew effect
causes a change in the direction of wire feed
Interpret the ER49S-2 electrode classification: - - -
correct answer ✅E-electrode
R-rod
49-minimum as welded tensile strength in megapascals divided by
10
S-solid wire
2-chemical analysis
questions and answers
Silicon, aluminum and manganese, when added to B-G 49A 3 C G2
are used as: - - -
correct answer ✅deoxidizers.
With GMAW wire, cast refers to the: - - -
correct answer ✅circle formed by one wrap of the wire.
Describe the helix of a wire and the effect that it may have on
welding. - - -
correct answer ✅Helix is the result of a natural twisting action of
the wire during forming. If the helix of the wire is excessive, the
wire does not exit out of the contact tip. This in turn can cause the
wire to waunder. The arc becomes unstable as this corkscrew effect
causes a change in the direction of wire feed
Interpret the ER49S-2 electrode classification: - - -
correct answer ✅E-electrode
R-rod
49-minimum as welded tensile strength in megapascals divided by
10
S-solid wire
2-chemical analysis
