WLD101 - Comprehensive Overview of Welding
Processes Electrodes Power Sources Arc Transfers
Techniques Defects and Safety Practices
What does smaw stand for - Shielded metal arc welding✅✅✅
The majority of smaw welding is done using what two polarities - Ac and dc +✅✅✅
The recommended power source for smaw welding is what type - Constant current✅✅✅
The aws classification os smaw electrode e7018-h4r what does the e stand for - Electrode✅✅✅
Which is not a fix to arc blow - Increase current✅✅✅
The aws classification of electrode e7024, what does the 2 stand for - Flat/horizontal
position✅✅✅
If an inverter power supply operates at 20,000 hz, how fast does a chopper machine operate - 20,000
hz✅✅✅
A machine has a duty cycle of 300 amps @ 20%.How long can you weld at 300 amps continuously
before the machine shuts down - 2 minutes✅✅✅
What smaw rod is known as the code rod - 7018✅✅✅
What is the device inside the power supply that changes ac to dc - Rectifier✅✅✅
In most inverters what used to increase the frequency of the incoming line signal of 50/60hz up to that
of the inverter at 20,000 hz - Igbt✅✅✅
To reduce the risk of hydrogen cracking which electrode would you select - 7018✅✅✅
, An igbt is called what - Isolated gate bipolar transistor✅✅✅
In smaw welding what does the hot start do - Provides an additional boost of current when striking the
arc✅✅✅
Notch toughness is one requirement for some structural applications especially those in seismic areas.
What does notch toughness do - Welds at high notch toughness have greater resistance to cracking
due to rapidly applied loads✅✅✅
For improved impact properties select the correct electrode - E7018-1✅✅✅
What electrode is not used to weld vertical down - 7018✅✅✅
What technique is often associated with 6010 electrodes - Whip✅✅✅
An 7024 electrode has what % iron powder in its coating - 30%✅✅✅
Ctod is a all weld metal fatigue test that some smaw electrodes pass - Crack tip opening
displacement✅✅✅
The aws classification of smaw electrode e7018-h4r what does the h4 stand for - 4ml of hydrogen per
100g of weld metall✅✅✅
What is not a function of the coating elements found in smaw welding electrodes - Keep the arc
established when using direct current✅✅✅
What does fcaw stand for - Flux cored arc welding✅✅✅
Fcaw-as is generally used done with what polarity - Dc-✅✅✅
Fcaw-gs is generally done with what polarity - Dc +✅✅✅
What type of power source is generally used for fcaw welding - Constant voltage✅✅✅
Processes Electrodes Power Sources Arc Transfers
Techniques Defects and Safety Practices
What does smaw stand for - Shielded metal arc welding✅✅✅
The majority of smaw welding is done using what two polarities - Ac and dc +✅✅✅
The recommended power source for smaw welding is what type - Constant current✅✅✅
The aws classification os smaw electrode e7018-h4r what does the e stand for - Electrode✅✅✅
Which is not a fix to arc blow - Increase current✅✅✅
The aws classification of electrode e7024, what does the 2 stand for - Flat/horizontal
position✅✅✅
If an inverter power supply operates at 20,000 hz, how fast does a chopper machine operate - 20,000
hz✅✅✅
A machine has a duty cycle of 300 amps @ 20%.How long can you weld at 300 amps continuously
before the machine shuts down - 2 minutes✅✅✅
What smaw rod is known as the code rod - 7018✅✅✅
What is the device inside the power supply that changes ac to dc - Rectifier✅✅✅
In most inverters what used to increase the frequency of the incoming line signal of 50/60hz up to that
of the inverter at 20,000 hz - Igbt✅✅✅
To reduce the risk of hydrogen cracking which electrode would you select - 7018✅✅✅
, An igbt is called what - Isolated gate bipolar transistor✅✅✅
In smaw welding what does the hot start do - Provides an additional boost of current when striking the
arc✅✅✅
Notch toughness is one requirement for some structural applications especially those in seismic areas.
What does notch toughness do - Welds at high notch toughness have greater resistance to cracking
due to rapidly applied loads✅✅✅
For improved impact properties select the correct electrode - E7018-1✅✅✅
What electrode is not used to weld vertical down - 7018✅✅✅
What technique is often associated with 6010 electrodes - Whip✅✅✅
An 7024 electrode has what % iron powder in its coating - 30%✅✅✅
Ctod is a all weld metal fatigue test that some smaw electrodes pass - Crack tip opening
displacement✅✅✅
The aws classification of smaw electrode e7018-h4r what does the h4 stand for - 4ml of hydrogen per
100g of weld metall✅✅✅
What is not a function of the coating elements found in smaw welding electrodes - Keep the arc
established when using direct current✅✅✅
What does fcaw stand for - Flux cored arc welding✅✅✅
Fcaw-as is generally used done with what polarity - Dc-✅✅✅
Fcaw-gs is generally done with what polarity - Dc +✅✅✅
What type of power source is generally used for fcaw welding - Constant voltage✅✅✅
