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134 Cards in this Set
- Front
- Back
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What need is increase when using shielding gases for wire feed process |
The need for good ventilation |
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Hi ultraviolet, radiation emissions from an ark can cause atmospheric oxygen in the vicinity of the arc to convert to |
Ozone |
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What is a potential source of poisonous chemical fumes when welding? |
Chlorinated, degreasing, solvent |
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What is the gas metal art welding process also known as |
MIG welding |
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What is the gas metal art welding process also known as |
MIG welding |
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GMAW is recommended for use on which of the following metals |
Stainless steel, aluminum, copper, alloys, carbon and alloy steals |
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What is the gas generates from that is used for self shielded FCAW |
The flux |
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The MCAW process uses the same equipment as which process |
FCAW |
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How are wire feed, guns rated |
By current carrying capacity |
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What is the major factor required when choosing between an air cold or a water cold gun? |
Current and voltage |
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What does a constant voltage CV machines produce? |
Relatively flat volt–amp curve |
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What does a constant voltage CV machines produce? |
Relatively flat volt–amp curve |
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Which power source is best suited for the short circuit mode of metal transfer? |
Constant voltage |
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What type of volt-amp curve does a constant current machine produce |
Drooping |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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When is the base metal composition the major factor to consider? |
When selecting filler materials |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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When is the base metal composition the major factor to consider? |
When selecting filler materials |
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We organization have written specifications for wire feed filler metals? |
AWS and CSA |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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When is the base metal composition the major factor to consider? |
When selecting filler materials |
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We organization have written specifications for wire feed filler metals? |
AWS and CSA |
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What is silicon aluminum and manganese used? When added to ER70S-2? |
deoxidizers |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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When is the base metal composition the major factor to consider? |
When selecting filler materials |
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We organization have written specifications for wire feed filler metals? |
AWS and CSA |
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What is silicon aluminum and manganese used? When added to ER70S-2? |
deoxidizers |
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What does cast referred to? |
Circle form by one wrap of the wire |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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When is the base metal composition the major factor to consider? |
When selecting filler materials |
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We organization have written specifications for wire feed filler metals? |
AWS and CSA |
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What is silicon aluminum and manganese used? When added to ER70S-2? |
deoxidizers |
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What does cast referred to? |
Circle form by one wrap of the wire |
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What are wires packaged in sealed containers mainly protected from |
Moisture contamination |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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|
When is the base metal composition the major factor to consider? |
When selecting filler materials |
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|
We organization have written specifications for wire feed filler metals? |
AWS and CSA |
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What is silicon aluminum and manganese used? When added to ER70S-2? |
deoxidizers |
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What does cast referred to? |
Circle form by one wrap of the wire |
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What are wires packaged in sealed containers mainly protected from |
Moisture contamination |
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What is often the result of welds produced with improperly cleaned wires? |
Porosity |
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What are filler metals containing additional deoxidizers intended for use on? |
Moderately rusty low-carbon steels |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What does the G stand for in the CSAFCAW electro classification E492T-G? General. |
General classification for electrodes, not covered under any other classification |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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|
When is the base metal composition the major factor to consider? |
When selecting filler materials |
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|
We organization have written specifications for wire feed filler metals? |
AWS and CSA |
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|
What is silicon aluminum and manganese used? When added to ER70S-2? |
deoxidizers |
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What does cast referred to? |
Circle form by one wrap of the wire |
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What are wires packaged in sealed containers mainly protected from |
Moisture contamination |
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What is often the result of welds produced with improperly cleaned wires? |
Porosity |
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What are filler metals containing additional deoxidizers intended for use on? |
Moderately rusty low-carbon steels |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What does the G stand for in the CSAFCAW electro classification E492T-G? General. |
General classification for electrodes, not covered under any other classification |
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In the GMAW short-circuiting transfer mode metal is transferred during which situation? |
When the electrode comes in contact with the pool |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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When is the base metal composition the major factor to consider? |
When selecting filler materials |
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|
We organization have written specifications for wire feed filler metals? |
AWS and CSA |
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|
What is silicon aluminum and manganese used? When added to ER70S-2? |
deoxidizers |
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What does cast referred to? |
Circle form by one wrap of the wire |
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What are wires packaged in sealed containers mainly protected from |
Moisture contamination |
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What is often the result of welds produced with improperly cleaned wires? |
Porosity |
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What are filler metals containing additional deoxidizers intended for use on? |
Moderately rusty low-carbon steels |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What does the G stand for in the CSAFCAW electro classification E492T-G? General. |
General classification for electrodes, not covered under any other classification |
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In the GMAW short-circuiting transfer mode metal is transferred during which situation? |
When the electrode comes in contact with the pool |
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Very fine droplets of metal axially transferred the arc describes what mood of metal transfer? |
Spray |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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When is the base metal composition the major factor to consider? |
When selecting filler materials |
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|
We organization have written specifications for wire feed filler metals? |
AWS and CSA |
|
|
What is silicon aluminum and manganese used? When added to ER70S-2? |
deoxidizers |
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What does cast referred to? |
Circle form by one wrap of the wire |
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What are wires packaged in sealed containers mainly protected from |
Moisture contamination |
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What is often the result of welds produced with improperly cleaned wires? |
Porosity |
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What are filler metals containing additional deoxidizers intended for use on? |
Moderately rusty low-carbon steels |
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Which type of welding machine produces an almost horizontal output slope |
Constant voltage machine |
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What does the G stand for in the CSAFCAW electro classification E492T-G? General. |
General classification for electrodes, not covered under any other classification |
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In the GMAW short-circuiting transfer mode metal is transferred during which situation? |
When the electrode comes in contact with the pool |
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Very fine droplets of metal axially transferred the arc describes what mood of metal transfer? |
Spray |
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Which GMAW mode of metal transfer is best suited for welding, thin metals |
Short-circuiting arc transfer |
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What is one of the main advantages of metal core wires? |
Hi deposition rate |
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What does the powder in a MCAW wire consist mostly of? |
Metal |
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When is the base metal composition the major factor to consider? |
When selecting filler materials |
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We organization have written specifications for wire feed filler metals? |
AWS and CSA |
|
|
What is silicon aluminum and manganese used? When added to ER70S-2? |
deoxidizers |
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|
What does cast referred to? |
Circle form by one wrap of the wire |
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|
What are wires packaged in sealed containers mainly protected from |
Moisture contamination |
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|
What is often the result of welds produced with improperly cleaned wires? |
Porosity |
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What are filler metals containing additional deoxidizers intended for use on? |
Moderately rusty low-carbon steels |
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Which MCAW mode of metal transfer is best suited for welding, thin materials |
Pulsed arc transfer |
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Which MCAW mode of metal transfer is best suited for welding, thin materials |
Pulsed arc transfer |
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Where are the dry rolls located on a pull-type drive system |
On the gun unit |
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Which MCAW mode of metal transfer is best suited for welding, thin materials |
Pulsed arc transfer |
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Where are the dry rolls located on a pull-type drive system |
On the gun unit |
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What is a pool type welding gun designed to be used with |
Soft wires |
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Which MCAW mode of metal transfer is best suited for welding, thin materials |
Pulsed arc transfer |
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Where are the dry rolls located on a pull-type drive system |
On the gun unit |
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What is a pool type welding gun designed to be used with |
Soft wires |
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What type of wire drive system allows greater machine to work distances |
Push-pull system |
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What is the most popular type of wire field system when using GMAW on mild steel? |
Push system |
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What is the most popular type of wire field system when using GMAW on mild steel? |
Push system |
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In addition to maximizing operating doors, comfort, what is the purpose of the curved neck on the welding gun |
It ensures, proper electrical transfer to the wire electrode |
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What is the most popular type of wire field system when using GMAW on mild steel? |
Push system |
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In addition to maximizing operating doors, comfort, what is the purpose of the curved neck on the welding gun |
It ensures, proper electrical transfer to the wire electrode |
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What is the welding cable assembly is constructed to do |
Supply current gas, and wire to the welding gun |
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What is the most popular type of wire field system when using GMAW on mild steel? |
Push system |
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In addition to maximizing operating doors, comfort, what is the purpose of the curved neck on the welding gun |
It ensures, proper electrical transfer to the wire electrode |
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What is the welding cable assembly is constructed to do |
Supply current gas, and wire to the welding gun |
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What type of conduit liner are most often used with soft wires? |
Nylon Teflon plastic liner |
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What is generally the longest practical feed cable with small diameter wire and a push feed system? |
4.5m (15ft) |
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What is generally the longest practical feed cable with small diameter wire and a push feed system? |
4.5m (15ft) |
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What is the main purpose of the contact tube? |
It transfers, the welding current to the filler wire |
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What is the purpose of a gas nozzle? |
The nozzle directs, shielding gas into the weld zone to prevent atmospheric contamination |
