Processes, and Techniques
Burns can be caused by ultraviolet light rays. - True✅✅✅
To treat a third degree burn, apply ointments or antibiotic cream. - False✅✅✅
Any cold liquid you drink can be poured on a first or second degree burn. - True✅✅✅
Too much visible light can cause temporary night blindness. - True✅✅✅
Both earmuffs and earplugs protect the outer ear from burns. - False✅✅✅
Damage to your hearing caused by high sound levels is permanent and may not be detected
until later in life. - True✅✅✅
Welding and cutting lead-bearing alloys or metals whose surfaces have been painted with
lead-based paint can generate lead oxide fumes. - True✅✅✅
The welding area should be ventilated and forced ventilation is best, but natural ventilation is
sometimes required. - False✅✅✅
Scrap metal and electrode stubs are difficult and costly to recycle. - False✅✅✅
When using extension cords on portable power tools, the size of the conductors must be small
enough to enable a drop in voltage. - False✅✅✅
Burns ____. - have a high risk of infection because of the dead tissue✅✅✅
____ respirators are air-purifying respirators that use a blower to force the ambient air
through air-purifying elements to the inlet covering. - Powered air-purifying✅✅✅
The symptoms of lead poisoning include ____. - metallic taste, loss of appetite, nausea,
abdominal cramps, and insomnia✅✅✅
The symptom of acute exposure to high concentrations of cadmium fumes is ____. - lung
irritation✅✅✅
,The symptoms of exposure to zinc oxide fumes include ____. - influenza
symptoms✅✅✅
____ is a gas that is produced by the ultraviolet radiation in the air in the vicinity of welding
operations. - Ozone✅✅✅
____ is formed when ultraviolet radiation decomposes chlorinated hydrocarbon. -
Phosgene✅✅✅
Any system of ventilation should draw the fumes or smoke away before it rises past the level
of the welder's ____. - face✅✅✅
Stored oxygen and fuel gas cylinders ____. - must be separated by 20 feet✅✅✅
____ fire extinguishers are used for electrical fires. - Type C✅✅✅
A ____ is the symbol for a Type C fire extinguisher. - blue circle✅✅✅
____ fire extinguishers are used for combustible metals such as zinc and magnesium. - Type
D✅✅✅
If a nut or bolt is too tight to loosen with a wrench, ____. - use a longer wrench✅✅✅
To test a grinding stone for cracks ____. - tap the stone in four places and listen for a
ring✅✅✅
____ are usually either hydraulic or flywheel operated. - Power punches✅✅✅
The Industrial Revolution, from 1750 to 1850, introduced a method of joining pieces of iron
together known as forced welding. - False✅✅✅
Hammer welding preceded resistance welding. - True✅✅✅
Pressure and heat are both necessary to create a weld. - False✅✅✅
In some instances, pressure alone may be sufficient to force separate pieces of material to
combine and form one piece. - True✅✅✅
GTA welding is the cleanest of all the manual welding processes. - True✅✅✅
, Gas metal arc welding and flux cored arc welding are very different welding processes, but
they use very similar welding equipment. - True✅✅✅
The highest paid welders are those who have the education and skills to read blueprints and
do the required work to produce a weldment to strict specifications. - True✅✅✅
Generally seventeen months of training are required to learn to weld. - False✅✅✅
A formal apprenticeship is usually required to become a general welder. - False✅✅✅
3/4 inch equals 28 millimeters. - False✅✅✅
____ welding was introduced first. - Forge or hammer✅✅✅
____ welding is the most modern. - Fusion✅✅✅
____ is a type of welding. - Gas tungsten arc welding✅✅✅
Oxyacetylene welding is also referred to as ____. - gas welding or torch welding✅✅✅
An advantage of ____ welding is that a variety of metal types and metal thicknesses can be
joined with one machine. - shielded metal arc✅✅✅
Even though ____ welding is slower and requires a higher skill level as compared to other
manual welding processes, it is still in demand because it can be used to make extremely
high-quality welds in applications where weld integrity is critical. - GTA✅✅✅
____ welding can be used to weld metal ranging in thickness from thin-gauge sheet metal to
heavy plate by making only a few changes in the welding setup. - Gas metal arc✅✅✅
GMA and ____ welding are the first choice for many welding fabricators because these
processes are cost effective, produce high- quality welds, and are flexible and versatile. -
FCA✅✅✅
____ cutting uses a stiff, highly ionized, extremely hot column of gas to almost instantly
vaporize the metal being cut. - Plasma arc✅✅✅
In selecting the joining process, one consideration relates to the ____, such as whether the
weld will be used on a piece of furniture, or to repair a piece of equipment, or to join a
pipeline. - quality requirements✅✅✅