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Update 2026 -2027) UPDATE!!
In PAC, kerf refers to
ANSWERS: The gap produced by cutting
Electrodes used for CAC-A are made of carbon or
ANSWERS: Graphite
In air carbon arc cutting, compressed air is used to
ANSWERS: Dislodge molten material
Compressed air must be ______ in the PAC process
ANSWERS: Completely dry
Size of lead cables required for arc processes is determined by the
ANSWERS:
Rated amperage that is can carry without overheating
When plasma arc cutting, dross can form on the bottom side of the metal
due to
ANSWERS: Travel speed too fast or slow
,Which of the following is a ferrous metal
ANSWERS: Mild steel
The process of heating a metal and slow cooling it in order to toughen it
and reduce brittleness is know as
ANSWERS: Annealing
The ability of a metal to withstand shock loading is known as its
ANSWERS: Toughness
The ___ weld test is classified as a destructive test
ANSWERS: Guided bend
Which of the following welds aligns two metal pieces approximately in
the same plane
ANSWERS: Butt joint
When using reverse polarity, the electrode will be
ANSWERS: Positive
What is the tensile strength strength of an E6012 electrode
ANSWERS: 60,000
What is the duty cycle of a SMAW power supply that can run for seven
minutes out of every 10 minutes period without overheating
ANSWERS: 70 percent
, One possible type of metal transfer when employing the GMAW
consumable electrode process is __ transfer
ANSWERS: Globular
For what process is a DC constant voltage power source used
ANSWERS: GMAW
A consumable isn't he GTAW process would include
ANSWERS: Filler rods
What is the proper gas flow rate for the use in GTAW application
ANSWERS: 20 cfh
The AWS classification of GTAW filler metal, ER70S-6, what does the R
stand for
ANSWERS: Rod
What is one of the primary causes of porosity in GTAW
ANSWERS: Hydrogen pickup
GTAW of magnesium is done using what polarity
ANSWERS: AC
What is not an advantage of argon vs helium as a shielding gas in GTAW
ANSWERS: Argon = Smaller heat affected zone