NEWEST 2026 (GRADED A+ 100% VERIFIED ANSWERS)
What tip do you use to cut a bolt off - ANSWER-An angled tip with 3 bottom preheats and one
oxygen above
What forms ozone? - ANSWER-When oxygen and atmospheric air comes in contact with
ultraviolet light
Chlorinated solvents such as brake clean combined with ultraviolet light create? - ANSWER-
Phosgene gas
What position do you put your roots in for pipe - ANSWER-1-2o clock position or down hand
When welding a root in the 1G position and getting excessive penetration what do you do? -
ANSWER-Do a wider weave
Pipe welds the root is using what process? - ANSWER-Short circuit or modified short circuit
dizziness and euphoria are signs of? - ANSWER-Oxygen difficiency
Most wire fed applications use what type of current - ANSWER-Direct current reverse
polarity, DCRP
,A wire feeder system includes what? - ANSWER-Drive roll system, variable speed motor
Gun and cable assemblies are rated by what? - ANSWER-Current carrying capacity
What is the purpose of a shielding gas - ANSWER-Protect weld metal from atmospheric air
The regulator does what? - ANSWER-reduces gas source pressure to a working pressure
What do flow metres do? - ANSWER-Indicate volumetric flow rate in liters, per minute or
cubic feet per hour
Construction of power sources and duty cycles are meant to specification of who? -
ANSWER-NEMA
What type of volt amp curve does CV machines have? - ANSWER-Relatively flat volt amp
curve
What type of volt amp curved do cc machines have - ANSWER-Drooping volt amp curve
Filler wires must be manufactured to? - ANSWER-Match the chemistry of base metal and
mechanical properties such as tensile strength, ductility and impact strength
What are AC-DC Transformer rectifiers - ANSWER-AC transformers with an added rectifier
that allows current to flow in one direction only, changing AC to DC
, Advantages of AC DC transformer rectifiers - ANSWER-May have ac and dc output capability,
full selection of electrodes, choice of polarity, machines may be cc or cv
What csa specification covers filler metals - ANSWER-Csa w48
What three types of wire drive systems are there - ANSWER-Push, pull and push pull
Where are the drive rolls located in a push system - ANSWER-In the wire feed unit
In a push system what is the max distance of cable - ANSWER-15ft
Where are the drive rolls located in a pull system - ANSWER-Mounted in the gun close to the
contact tip
What problem does the pull system overcome - ANSWER-Wire hang ups with soft wires
What type of wire is used in a pull system - ANSWER-Small diameter or soft electrode wires
such as aluminum wires
What are sub assemblies - ANSWER-It is a method of reducing distortion by breaking the
work into a number of component parts and welding them first before attaching them to the
main assembly