Question 1

​What can be done to keep the spatter to a minimum when using CO2 as the shielding gas?

Accepted Answer

A)  ​Use a leading gun angle with a higher shielding gas flow rate. 
B)  ​Maintain a very short uniform arc length while welding. 
C)  ​Make stringer bead welds with little or no weave motion. 
D)  ​Travel at a slower speed. 
A)  ​Use a leading gun angle with a higher shielding gas flow rate. 
B)  ​Maintain a very short uniform arc length while welding. 
C)  ​Make stringer bead welds with little or no weave motion. 
D)  ​Travel at a slower speed.

Question 2

As the electrode extension is shortened, the welding current ____.

Accepted Answer

A)  decreases 
B)  increases 
C)  stays the same 
D)  varies erratically 
A)  decreases 
B)  increases 
C)  stays the same 
D)  varies erratically

Question 3

Which of the following is true of mill scale?

Accepted Answer

A)  The porosity it causes is most often confined to the interior of the weld. 
B)  It is removed even for noncode welding. 
C)  With GMA welding wire, deoxidizer eliminates the adverse effects of mill scale. 
D)  It increases the chance of rusting. 
A)  The porosity it causes is most often confined to the interior of the weld. 
B)  It is removed even for noncode welding. 
C)  With GMA welding wire, deoxidizer eliminates the adverse effects of mill scale. 
D)  It increases the chance of rusting.

Question 4

Why should wire not be discarded on the floor?

Accepted Answer

Do not discard pieces of wire on the flo

Question 5

____ is increased and ____ is decreased as the electrode extension is shortened.

Accepted Answer

A)  Penetration, buildup 
B)  Buildup, penetration 
C)  Voltage, penetration 
D)  Welding current, penetration 
A)  Penetration, buildup 
B)  Buildup, penetration 
C)  Voltage, penetration 
D)  Welding current, penetration

Question 6

A weld that is high and has little or no fusion is too "cold." To correct this, ____.

Accepted Answer

A)  change welding technique 
B)  change the weave pattern 
C)  increase travel speed 
D)  stop welding and make the needed adjustments 
A)  change welding technique 
B)  change the weave pattern 
C)  increase travel speed 
D)  stop welding and make the needed adjustments

Question 7

Slight changes in ____ can be used to control the weld as the groove spacing changes.

Accepted Answer

A)  penetration 
B)  V-groove 
C)  welding gun angle 
D)  stickout 
A)  penetration 
B)  V-groove 
C)  welding gun angle 
D)  stickout

Question 8

​How should the conduit or an extension be aligned with the grooved roller?

Accepted Answer

A)  ​These parts are preset in the factory and must not be changed in the field. 
B)  ​They should be lightly touching the rollers so that the welding current can flow down the wire to the welding gun. 
C)  ​½ in.(13 mm) from the grooves in the roller to prevent arcing. 
D)  ​Set as close as possible without touching the roller. 
A)  ​These parts are preset in the factory and must not be changed in the field. 
B)  ​They should be lightly touching the rollers so that the welding current can flow down the wire to the welding gun. 
C)  ​½ in.(13 mm) from the grooves in the roller to prevent arcing. 
D)  ​Set as close as possible without touching the roller.

Question 9

​The perpendicular welding gun angle produces welds that ______________________.

Accepted Answer

A)  ​have more penetration and less reinforcement 
B)  ​have a good balance between penetration and reinforcement 
C)  ​have less penetration and more reinforcement 
D)  ​are more likely to cause burnthrough than any other welding gun angle 
A)  ​have more penetration and less reinforcement 
B)  ​have a good balance between penetration and reinforcement 
C)  ​have less penetration and more reinforcement 
D)  ​are more likely to cause burnthrough than any other welding gun angle

Question 10

The ____________________ of a wire is measured by the diameter of the circle that the wire would make if it were loosely laid on a flat surface.

Accepted Answer

The answer of The ____________________ of a wire is measured...

Question 11

​At low amperages and high voltage settings the wire may___________.

Accepted Answer

A)  ​stick to the weld and have to be cut or pulled loose 
B)  ​pop violently as a result of the uncontrolled arc 
C)  ​not reach the weld 
D)  ​need to be changed to a larger diameter 
A)  ​stick to the weld and have to be cut or pulled loose 
B)  ​pop violently as a result of the uncontrolled arc 
C)  ​not reach the weld 
D)  ​need to be changed to a larger diameter

Question 12

​What are the basic components of a GMA welding station?

Accepted Answer

​The basic GMAW installation consists of

Question 13

Electrode wire has a natural curve that is known as its ____.

Accepted Answer

A)  curve 
B)  cast 
C)  diameter 
D)  circle 
A)  curve 
B)  cast 
C)  diameter 
D)  circle

Question 14

What can be done to counteract the loss of certain alloying elements such as chromium, vanadium, aluminum, titanium, manganese or silicon?

Accepted Answer

A)  Do not use oxygen in the shielding gas. 
B)  Use less oxygen in the shielding gas. 
C)  Add a deoxidizer to the shielding gas. 
D)  Add a deoxidizer to the filler wire. 
A)  Do not use oxygen in the shielding gas. 
B)  Use less oxygen in the shielding gas. 
C)  Add a deoxidizer to the shielding gas. 
D)  Add a deoxidizer to the filler wire.

Question 15

​What can a welder do to make the necessary adjustments in the setup and manipulation to achieve a good weld?

Accepted Answer

A)  ​Keep the welding station clean and free from scrap that can get in the way of your seeing the weld. 
B)  ​Do not make changes to the welding setup that was working for the last welder. 
C)  ​Use a mixture of argon with 2% oxygen as the shielding gas. 
D)  ​Make a few test welds. 
A)  ​Keep the welding station clean and free from scrap that can get in the way of your seeing the weld. 
B)  ​Do not make changes to the welding setup that was working for the last welder. 
C)  ​Use a mixture of argon with 2% oxygen as the shielding gas. 
D)  ​Make a few test welds.

Question 16

The longer the ____, the greater the ____ to the welding current.

Accepted Answer

A)  electrode extension, distance 
B)  arc, distance 
C)  distance, arc 
D)  electrode extension, resistance 
A)  electrode extension, distance 
B)  arc, distance 
C)  distance, arc 
D)  electrode extension, resistance

Question 17

The exact shielding gas ____________________ required for a certain job will vary depending upon the welding conditions.

Accepted Answer

The answer of The exact shielding gas ____________________ required for...

Question 18

To make threading electrode wire easier, ____.

Accepted Answer

A)  straighten about 12 in.(305 mm) of the end of the wire and cut off any kinks 
B)  cut off about 12 in.(305 mm) of the end of the wire 
C)  cut off about 2 in.(50 mm) of the end of the wire 
D)  straighten about 2 in.(50 mm) of the end of the wire and cut off any kinks 
A)  straighten about 12 in.(305 mm) of the end of the wire and cut off any kinks 
B)  cut off about 12 in.(305 mm) of the end of the wire 
C)  cut off about 2 in.(50 mm) of the end of the wire 
D)  straighten about 2 in.(50 mm) of the end of the wire and cut off any kinks

Question 19

____ provide the necessary shielding because they do not form compounds with any other substance.

Accepted Answer

A)  Active gases 
B)  Inert gases 
C)  Carbon blends 
D)  Oxygen blends 
A)  Active gases 
B)  Inert gases 
C)  Carbon blends 
D)  Oxygen blends

Question 20

​The major skill required to make acceptable GMA welds consistently is_______________.

Accepted Answer

A)  ​to use a longer arc length with a slower wire feed speed 
B)  ​to only weld in the flat or vertical down positions when possible 
C)  ​the ability to set up the equipment and weldment 
D)  ​to keep the welding gun nozzle high enough so you can always see all of the weld pool 
A)  ​to use a longer arc length with a slower wire feed speed 
B)  ​to only weld in the flat or vertical down positions when possible 
C)  ​the ability to set up the equipment and weldment 
D)  ​to keep the welding gun nozzle high enough so you can always see all of the weld pool

Exam 11: Gas Metal Arc Welding

​What can be done to keep the spatter to a minimum when using CO2 as the shielding gas?

As the electrode extension is shortened, the welding current ____.

Which of the following is true of mill scale?

Why should wire not be discarded on the floor?

____ is increased and ____ is decreased as the electrode extension is shortened.

A weld that is high and has little or no fusion is too "cold." To correct this, ____.

Slight changes in ____ can be used to control the weld as the groove spacing changes.

​How should the conduit or an extension be aligned with the grooved roller?

​The perpendicular welding gun angle produces welds that ______________________.

The ____________________ of a wire is measured by the diameter of the circle that the wire would make if it were loosely laid on a flat surface.

​At low amperages and high voltage settings the wire may___________.

​What are the basic components of a GMA welding station?

Electrode wire has a natural curve that is known as its ____.

What can be done to counteract the loss of certain alloying elements such as chromium, vanadium, aluminum, titanium, manganese or silicon?

​What can a welder do to make the necessary adjustments in the setup and manipulation to achieve a good weld?

The longer the ____, the greater the ____ to the welding current.

The exact shielding gas ____________________ required for a certain job will vary depending upon the welding conditions.

To make threading electrode wire easier, ____.

____ provide the necessary shielding because they do not form compounds with any other substance.

​The major skill required to make acceptable GMA welds consistently is_______________.

Introduction to Welding

Safety in Welding

Shielded Metal Arc Equipment, Setup, and Operation

Shielded Metal Arc Welding of Plate

Shielded Metal Arc Welding of Pipe

Shielded Metal Arc Welding Aws Sense Certification

Flame Cutting

Plasma Arc Cutting

Related Cutting Processes

Gas Metal Arc Welding Equipment, Setup, and Operation

Flux Cored Arc Welding Equipment, Setup, and Operation

Flux Cored Arc Welding

Gas Metal Arc and Flux Cored Arc Welding of Pipe

Gas Metal Arc and Flux Cored Arc Welding Aws Sense Certification

Gas Tungsten Arc Welding Equipment, Setup, Operation, and Filler Metals

Gas Tungsten Arc Welding of Plate

Gas Tungsten Arc Welding of Pipe

Gas Tungsten Arc Welding Plate and Pipe Aws Sense Certification

Shop Math and Weld Cost

Reading Technical Drawings

Welding Joint Design and Welding Symbols

Fabricating Techniques and Practices

Welding Codes and Standards

Testing and Inspection of Welds

Welding Metallurgy

Weldability of Metals

Filler Metal Selection

Welding Automation and Robotics

Other Welding Processes

Oxyfuel Welding and Cutting Equipment, Setup, and Operation

Oxyacetylene Welding

Brazing, Braze Welding, and Soldering

Filters

What can be done to keep the spatter to a minimum when using CO2 as the shielding gas?

is increased and is decreased as the electrode extension is shortened.

How should the conduit or an extension be aligned with the grooved roller?

The perpendicular welding gun angle produces welds that ______________________.

At low amperages and high voltage settings the wire may___________.

What are the basic components of a GMA welding station?

What can a welder do to make the necessary adjustments in the setup and manipulation to achieve a good weld?

The longer the , the greater the to the welding current.

The major skill required to make acceptable GMA welds consistently is_______________.