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The wire feed speed on charts are generally given in ___________________.


A) pounds for filler wire per minute
B) amperage and voltage
C) pounds per square inch of weld area
D) inches per minute

E) A) and D)
F) None of the above

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The correct flow rate of a shielding gas can be set by ____.


A) checking the pressure of the gas
B) multiplying the nozzle size by the amperage
C) checking welding guides
D) checking the density of the gas

E) A) and B)
F) A) and C)

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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.

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To make threading electrode wire easier, ____.


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

E) None of the above
F) B) and C)

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The only difference between all GMA welding machines and some FCA welding machines is that all GMA welding machines must have a ______________.


A) cooling water system
B) shielding gas solenoid
C) air cooling fan
D) power contactor to start and stop the current

E) A) and B)
F) All of the above

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

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Explain what happens when spatter falls onto the shielding gas nozzle, and how this can be minimized.

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Much of the spatter created during overh...

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


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

E) All of the above
F) B) and D)

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The perpendicular welding gun angle produces welds that ______________________.


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

E) C) and D)
F) None of the above

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____________________ is a thin layer of dark gray or black iron oxide formed during the rolling process.

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The ____________________ refers to the angle between the GMA welding gun and the work as it relates to the direction of travel.

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


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

E) A) and C)
F) A) and D)

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The major advantages of the vertical down position technique are ____.


A) speed and deep penetration
B) speed, shallow penetration, and good bead appearance
C) less skill is required to make sound welds
D) lack of fusion and overlap

E) B) and D)
F) B) and C)

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Describe how to keep the weld bead straight and uniform when visibility is limited.

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Even with limited visibility, it is poss...

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A ____ gap may require ____.


A) narrow, more penetration
B) narrow, less penetration
C) wide, more penetration
D) narrow, forehand welding

E) A) and B)
F) All of the above

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What can be done to keep the spatter to a minimum when using CO2as the shielding gas?


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.

E) B) and C)
F) A) and B)

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At low amperages and high voltage settings the wire may___________.


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

E) A) and D)
F) A) and B)

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With the feed running, adjust the ____________________ so that the reel stops when the feed stops.

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


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

E) None of the above
F) A) and C)

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How should the conduit or an extension be aligned with the grooved 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) They should be ½ in. (13 mm) from the grooves in the roller to prevent arcing.
D) These parts should be set as close as possible without touching the roller.

E) A) and B)
F) A) and C)

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