The device that pulls the electrode wire from a spool and pushes it through the gun cable and gun is ...

The device that pulls the electrode wire from a spool and pushes it through the gun cable and gun is known as
a(n) _____.

a. spool gun
b. closed-loop unit
c. push-pull extractor
d. wire feeder

[Ques. 2] A powered extraction system is a valuable tool for _____.

a. feeding wire electrode
b. removing welding fumes
c. directing shielding gas
d. reducing welding spatter

[Ques. 3] Welder power sources usually contain controls for adjusting arc voltage, slope, and _____.

a. resistance
b. inductance
c. capacitance
d. conductance

[Ques. 4] A duty cycle is the percentage of a 10-minute period during which a welding machine can continuously _____.

a. maintain a constant voltage as the output current varies
b. produce a constant current over a wide voltage range
c. produce its rated amperage without overheating
d. establish an arc between the end of the wire electrode and the workpiece

[Ques. 5] A note that provides a detailed description of requirements for the type and size of parts or material required
is known as a _____.

a. mark
b. parts list
c. specification
d. schedule of parts

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The device that pulls the electrode wire from a spool and pushes it through the gun cable and gun is ...

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