Welding - GMAW (Gas Metal Arc
Welding) questions n answers graded
A+
*Increased wire speed* is the primary problem of having excessive stick out - correct answer ✔✔What is
the primary problem of having excessive stick out?
Spatter - correct answer ✔✔What will happen when your voltage is set excessively low and your wire is
set excessively high?
When wire feed is increased current will *increase* - correct answer ✔✔When wire feed is increased
current will *increase/decrease*?
Too much build up of material - correct answer ✔✔What will happen to a butt weld if the opening is too
wide and the travel speed is to slow?
The power source for GMAW welding is constant *voltage* - correct answer ✔✔The power source for
GMAW welding is constant *current/voltage*?
GMAW is applied *semi automatically* - correct answer ✔✔GMAW is applied *automatically/semi
automatically*?
Wire feed controls *amperage* - correct answer ✔✔Wire feed controls *amperage/voltage*?
*True:* A concave root surface is caused by the wire being too far back in the puddle. - correct answer
✔✔*True or False:* A concave root surface is caused by the wire being too far back in the puddle.
A horizontal square groove butt joint should have *1 bead* - correct answer ✔✔How many beads
should a horizontal square groove butt joint should have?
, The shielding gas we use for GMAW is *75% argon* gas and *25% carbon dioxide* gas. - correct answer
✔✔The shielding gas we use for GMAW is _____% _________________ gas and ____% ____________
gas.
*True:* To correct for excessive convexity you should reduce current and increase voltage. - correct
answer ✔✔*True or False:* To correct for excessive convexity you should reduce current and increase
voltage.
If the weld bead is flat and wide the welder should *decrease* voltage - correct answer ✔✔If the weld
bead is flat and wide the welder should *increase/decrease* voltage?
The Electrode should be placed at *front* point in the puddle - correct answer ✔✔The Electrode should
be placed at what point in the puddle, *Front/Back/side*?
*True:* Unequal legs on a weld are caused by an incorrect work angle. - correct answer ✔✔*True or
False:* Unequal legs on a weld are caused by an incorrect work angle.
Current *decreases* when the electrode stickout is increased - correct answer ✔✔Current
*increases/decreases* when the electrode stickout is increased?
The three angles for a horizontal T joint are - *45* degrees, *55* degrees, and *35* degrees - correct
answer ✔✔The three angles for a horizontal T joint are- ________ degrees, ________ degrees, and
_______degrees
Lack of shielding gas causes surface *porsity* in a weld. - correct answer ✔✔Lack of shielding gas causes
surface ___________ in a weld.
The *contact tube* is the fitting on the gun that the wire is fed through. - correct answer ✔✔The
_________ ___________ is the fitting on the gun that the wire is fed through.
*Too high of gas pressuer* will cause gas lines to frost when wire welding? - correct answer ✔✔What
will cause gas lines to frost when wire welding?
Welding) questions n answers graded
A+
*Increased wire speed* is the primary problem of having excessive stick out - correct answer ✔✔What is
the primary problem of having excessive stick out?
Spatter - correct answer ✔✔What will happen when your voltage is set excessively low and your wire is
set excessively high?
When wire feed is increased current will *increase* - correct answer ✔✔When wire feed is increased
current will *increase/decrease*?
Too much build up of material - correct answer ✔✔What will happen to a butt weld if the opening is too
wide and the travel speed is to slow?
The power source for GMAW welding is constant *voltage* - correct answer ✔✔The power source for
GMAW welding is constant *current/voltage*?
GMAW is applied *semi automatically* - correct answer ✔✔GMAW is applied *automatically/semi
automatically*?
Wire feed controls *amperage* - correct answer ✔✔Wire feed controls *amperage/voltage*?
*True:* A concave root surface is caused by the wire being too far back in the puddle. - correct answer
✔✔*True or False:* A concave root surface is caused by the wire being too far back in the puddle.
A horizontal square groove butt joint should have *1 bead* - correct answer ✔✔How many beads
should a horizontal square groove butt joint should have?
, The shielding gas we use for GMAW is *75% argon* gas and *25% carbon dioxide* gas. - correct answer
✔✔The shielding gas we use for GMAW is _____% _________________ gas and ____% ____________
gas.
*True:* To correct for excessive convexity you should reduce current and increase voltage. - correct
answer ✔✔*True or False:* To correct for excessive convexity you should reduce current and increase
voltage.
If the weld bead is flat and wide the welder should *decrease* voltage - correct answer ✔✔If the weld
bead is flat and wide the welder should *increase/decrease* voltage?
The Electrode should be placed at *front* point in the puddle - correct answer ✔✔The Electrode should
be placed at what point in the puddle, *Front/Back/side*?
*True:* Unequal legs on a weld are caused by an incorrect work angle. - correct answer ✔✔*True or
False:* Unequal legs on a weld are caused by an incorrect work angle.
Current *decreases* when the electrode stickout is increased - correct answer ✔✔Current
*increases/decreases* when the electrode stickout is increased?
The three angles for a horizontal T joint are - *45* degrees, *55* degrees, and *35* degrees - correct
answer ✔✔The three angles for a horizontal T joint are- ________ degrees, ________ degrees, and
_______degrees
Lack of shielding gas causes surface *porsity* in a weld. - correct answer ✔✔Lack of shielding gas causes
surface ___________ in a weld.
The *contact tube* is the fitting on the gun that the wire is fed through. - correct answer ✔✔The
_________ ___________ is the fitting on the gun that the wire is fed through.
*Too high of gas pressuer* will cause gas lines to frost when wire welding? - correct answer ✔✔What
will cause gas lines to frost when wire welding?
