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Terms in this set (20)

in plasma arc cutting, plasma is created by
superheating gas in an electric arc
in most cases, plasma arc cutting is __________.
faster and more efficient than other cutting methods
which of the following ppe is considered optional for plasma arc cutting?
a full leather hood
which of the following safety statements related to plasma arc cutting is true?
never carry matches or gas-filled lighters in your pockets.
the simplest plasma arc cutting units use filtered _____________.
compressed air
industrial plasma cutting units can cut carbon steel up to __________.
3" thick
the most common plasma arc cutting torch uses _______________.
a pilot arc with the transferred arc process
the typical arc cutting torch uses a ______________.
retaining cup, copper electrode with a hafnium of thoriated tungsten insert, gas swirl ring, and nozzle
the term standoff distance refers to the ___________________.
distance between the torch tip and the workpiece
Most heavy-duty plasma arc cutting systems require one gas cylinder containing the cutting gas and another containing _____________________.
shielding or cooling gas
some light-duty pac equipment has a built-in ________________________.
air compressor
cutting a 2" (5 cm) aluminum plate requires a(n) _______________________.
high-cutting amperage
to pierce very thin metal using plasma arc cutting, hold the torch at a ________________________.
0-degree work angle
when gas cylinders are disconnected from a plasma arc cutting unit before it is stored, be sure to __________________________.
replace the cylinder caps
grounding of a welding usually involves ________________________.
connecting the machine's ground terminal to a known ground source
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