NOCTI TEST WELDING EXAM QUESTIONS AND 100% CORRECT
ANSWERS 2025
What does GMAW stand for
Gas Metal Arc Welding
GMAW is generally done with what polarity?
Direct current electrode positive (DC+)
What type of power source is generally used for GMAW welding
Constant Voltage
What does E stand for in ER70S-6
electrode
What does "70" stand for in ER70S-3?
tensile strength
What mode of metal transfer allows for only flat/horizontal position GMAW welding
Spray
What gas mixture is generally associated with spray transfer on steel?
80% AR/ 20% CO2
What gas mixture is generally associated with globular transfer on steel?
,90% AR/ 10%CO2
Inadequate gas flow can cause what defect in GMAW welding?
Porosity
What is generally not an effect of a worn or loose contact tip
porosity
What does STT stand for?
Surface Tension Transfer
What type of arc transfer is associated with STT?
short circuit
Cold lap or lack of fusion is generally associated with what type of arc transfer
Short Circuit
What does the s stand for in the GMAW classification for ER70S-6
Solid
What mode of metal transfer allows for consistent all position GMAW welding
Short Circuit
What gas mixture is generally associated with pulse transfer on steel?
, 90% AR/ 10% CO2
What does SMAW stand for?
Shielded Metal Arc Welding
The majority of smaw welding is done using what two polarities
Dc+ , AC
The recommended power source for SMAW welding is what type
Constant Current
The AWS a classification of SMAW electrode E7018-H4R what does E stand for?
Electrode
Which is not a fix to arc blow
Increase current (Amperage)
The AWS classification of smaw electrode, E7018-H4R, what does the R stand for
Moisture resistance
The AWS classification of smaw electrode, E7024, what does the 2 stand for
Flat/ Horizontal position
ANSWERS 2025
What does GMAW stand for
Gas Metal Arc Welding
GMAW is generally done with what polarity?
Direct current electrode positive (DC+)
What type of power source is generally used for GMAW welding
Constant Voltage
What does E stand for in ER70S-6
electrode
What does "70" stand for in ER70S-3?
tensile strength
What mode of metal transfer allows for only flat/horizontal position GMAW welding
Spray
What gas mixture is generally associated with spray transfer on steel?
80% AR/ 20% CO2
What gas mixture is generally associated with globular transfer on steel?
,90% AR/ 10%CO2
Inadequate gas flow can cause what defect in GMAW welding?
Porosity
What is generally not an effect of a worn or loose contact tip
porosity
What does STT stand for?
Surface Tension Transfer
What type of arc transfer is associated with STT?
short circuit
Cold lap or lack of fusion is generally associated with what type of arc transfer
Short Circuit
What does the s stand for in the GMAW classification for ER70S-6
Solid
What mode of metal transfer allows for consistent all position GMAW welding
Short Circuit
What gas mixture is generally associated with pulse transfer on steel?
, 90% AR/ 10% CO2
What does SMAW stand for?
Shielded Metal Arc Welding
The majority of smaw welding is done using what two polarities
Dc+ , AC
The recommended power source for SMAW welding is what type
Constant Current
The AWS a classification of SMAW electrode E7018-H4R what does E stand for?
Electrode
Which is not a fix to arc blow
Increase current (Amperage)
The AWS classification of smaw electrode, E7018-H4R, what does the R stand for
Moisture resistance
The AWS classification of smaw electrode, E7024, what does the 2 stand for
Flat/ Horizontal position
