2013 - AGSC 1352 - 1ST MAJOR EXAM (CHAPTER 1 & 2) STUDY GUIDE
True/False
Indicate whether the statement is true or false.
____1.The Industrial Revolution, from 1750 to 1850, introduced a method of joining pieces of iron together known as forced welding.
____2.Hammer welding preceded resistance welding.
____3.Pressure and heat are both necessary to create a weld.
____4.In some instances, pressure alone may be sufficient to force separate pieces of material to combine and form one piece.
____5.The oxyfuel (OF) gas processes are the least versatile of the welding processes.
____6.Gas tungsten arc welding (GTAW) is easily performed on almost any metal.
____7.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.
____8.Generally seventeen months of training are required to learn to weld.
____9.A formal apprenticeship is usually required to become a general welder.
____10.3/4 inch equals 18 millimeters.
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____11.Which of the following was introduced first?
a. / Forged welding or hammer welding.b. / Resistance welding.
c. / Fusion welding.
d. / Oxyacetylene welding.
____12.Which of the following is the most modern?
a. / Forged welding or hammer weldingb. / Resistance welding
c. / Fusion welding
d. / Oxyacetylene welding
____13.Which of the following is a type of welding?
a. / forced welding / c. / gas tungsten arc weldingb. / acetyloxidate welding / d. / plastic core arc welding
____14.Oxyacetylene welding is also referred to as ____.
a. / gas welding or torch weldingb. / gas metal arc welding, or just gas welding
c. / gas flux cored arc welding
d. / Shielded metal arc welding or torch arc welding
____15.A major advantage of ____ welding is that it is often possible to make welds without the use of an external shielding gas.
a. / oxyacetylene / c. / gas metal arcb. / shielded metal arc / d. / flux cored arc
____16.A major advantage of ____ welding is that the process is easily used for welding on thin gauge metal as well as on heavy plate.
a. / oxyacetylene / c. / gas metal arcb. / shielded metal arc / d. / flux cored arc
____17.An advantage of ____ welding is that a variety of metal types and metal thicknesses an be joined with one machine.
a. / oxyacetylene / c. / gas metal arcb. / shielded metal arc / d. / flux cored arc
____18.____ welding can be performed on almost any metal, and the welds often require little or no postweld finishing.
a. / Oxyacetylene / c. / Gas tungsten arcb. / Shielded metal arc / d. / Gas metal arc
____19.The ____ processes are the most versatile of welding processes.
a. / oxyfuel gas / c. / shielded metalb. / oxyacetylene / d. / tungsten flux cored
____20.The most commonly used welding processes are ____.
a. / gas metal arc welding and gas tungsten arc weldingb. / gas metal arc welding and oxyacetylene welding
c. / oxyacetylene welding and shielded metal arc welding
d. / gas metal arc welding and flux cored arc welding
____21.In selecting the joining processes, one consideration is ____, or will this be a weldment that is only needed to test and idea, or will it be a permanent structure?
a. / quality requirementsb. / appearance of the finished product
c. / materials to be used
d. / size of the parts to be joined
____22.In selecting the joining process, one consideration is ____, 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.
a. / quality requirementsb. / appearance of the finished product
c. / materials to be used
d. / size of the parts to be joined
____23.In selecting the joining process, one consideration is ____, such as whether the parts are made out of a standard metal or an exotic alloy.
a. / quality requirementsb. / appearance of the finished product
c. / materials to be used
d. / size of the parts to be joined
____24.Tack welders ____.
a. / clean slag from the welds, and help position weldmentsb. / operate machines or automatic equipment used to make welds
c. / often help the welder by making small welds to hold parts in place
d. / design, specify and oversee the construction of complex weldments
____25.Welder helpers ____.
a. / clean slag from the welds, and help position weldmentsb. / operate machines or automatic equipment used to make welds
c. / often help the welder by making small welds to hold parts in place
d. / design, specify and oversee the construction of complex weldments
____26.Welder operators ____.
a. / clean slag from the welds, and help position weldmentsb. / operate machines or automatic equipment used to make welds
c. / often help the welder by making small welds to hold parts in place
d. / demonstrate good management skills by planning jobs and assigning workers
____27.Welding shop owners ____.
a. / have a high degree of skill and knowledge of small business managementb. / operate machines or automatic equipment used to make welds
c. / often help the welder by making small welds to hold parts in place
d. / demonstrate good management skills by planning jobs and assigning workers
____28.Welding shop supervisors ____.
a. / have a high degree of skill and knowledge of small-business managementb. / operate machines or automatic equipment used to make welds
c. / position all the parts in their proper places and make ready for the tack welders
d. / demonstrate good management skills by planning jobs and assigning workers
____29.Welder assemblers ____.
a. / have a high degree of skill and knowledge of small business managementb. / operate machines or automatic equipment used to make welds
c. / position all the parts in their proper places and make ready for the tack welders
d. / demonstrate good management skills by planning jobs and assigning workers
____30.The ____ must be correctly applied so that it is strong enough to hold the assembly and still not interfere with the finished welding.
a. / forged weld / c. / tack weldb. / stick weld / d. / rod weld
____31.____ must be able to interpret blueprints and welding procedures.
a. / Tack welders / c. / Welder’s helpersb. / Weld shop owners / d. / Welder assemblers
____32.Welding engineers ____.
a. / clean slag from the welds, and help position weldmentsb. / position all the parts in their proper places and make ready for the tack welders
c. / often help the welder by making small welds to hold parts in place.
d. / design, specify and oversee the construction of complex weldments
____33.The ____ is required to know all of the welding process and metallurgy as well as have good math, reading, communication, and design skills.
a. / welding engineer / c. / welder’s helperb. / welding inspector / d. / welder operator
____34.In many industries, ____ must be able to pass a performance test to specific code or standard.
a. / the welding engineer, the welder, and the welding operatorb. / the welding engineer, the welding inspector, and the welding shop owner
c. / the welder, welding operator, and tack welder
d. / the welding operator, the tack welder, and the welder’s helper
____35.The ____ may oversee the actual work for the engineer by providing the engineer with progress reports as well as chemical, physical, and mechanical test results.
a. / weld operator / c. / tack welderb. / foreman / d. / technician
Completion
Complete each statement.
36.A weld is defined as “a localized ______of metals or nonmetals produced either by heating the materials to the required welding temperatures, with or without the application of pressure, or by the application of pressure alone, and with or without the use of filler materials.”
37.In a(n) ______process, the welder is required to manipulate the entire process.
38.In a(n) ______process, filler metal is added automatically, and all other manipulation is done manually by the welder.
39.In a(n) ______process, operations are done mechanically under the observation of a welding operator.
40.In a(n) ______process, operations are performed by a machine that has been programmed to do an entire operation without interaction with the operator.
41.In a(n) ______process operations are performed by a robot or machine that has the flexibility to do a variety of processes.
42.Welder ______position all parts in their proper positions and make ready for the tack welders.
43.Welder ______are employed in some welding shops to clean slag from the welds and help move and position weldments for the welder.
44.Welding ______operate machines or automatic equipment used to make welds.
45.Welding ______design, specifies, and oversees the construction of complex weldments.
Short Answer
46.When was forge welding introduced, and how was it done?
47.What is the advantage of flux cored arc welding?
CHAPTER TWO
True/False
Indicate whether the statement is true or false.
____1.Burns can be caused by ultraviolet light rays.
____2.To treat a third degree burn, apply ointments or antibiotic cream.
____3.Any cold liquid you drink can be poured on a first or second degree burn.
____4.Too much visible light can cause temporary night blindness.
____5.Both earmuffs and earplugs protect the outer ear from burns.
____6.Damage to your hearing caused by high sound levels is permanent and may not be detected until later in life.
____7.Welding and cutting lead-bearing alloys or metals whose surfaces have been painted with lead-based paint can generate lead oxide fumes.
____8.The welding area should be ventilated and forced ventilation is best, but natural ventilation is sometimes required.
____9.Scrap metal and electrode stubs are difficult and costly to recycle.
____10.When using extension cords on portable power tools, the size of the conductors must be small enough to enable a drop in voltage.
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____11.Which of the following is true of burns?
a. / They are caused by heat and not light.b. / They are among the least common injuries in a welding shop.
c. / They are divided into four categories.
d. / The risk of infection is high because of the dead tissue.
____12.To treat a third degree burn ____.
a. / apply ointments or antiseptic sprayb. / remove all clothing stuck to the burn
c. / cover the burned area with thick, sterile, non-fluffy dressings
d. / pour cold water on the burn
____13.____ light is dangerous because the welder cannot feel the light while being exposed to it, and it may pass through clothing.
a. / Ultraviolet / c. / Visibleb. / Infrared / d. / Spectral
____14.____ light can cause temporary night blindness.
a. / Ultraviolet / c. / Visibleb. / Infrared / d. / Spectral
____15.____ light can cause burns, but a person will immediately feel this type of light.
a. / Ultraviolet / c. / Visibleb. / Infrared / d. / Spectral
____16.____ respirators supply breathing air from a source independent of the ambient atmosphere.
a. / Air-purifying and Self-contained breathing apparatusb. / Atmosphere-supplying, Demand and Supplied-air
c. / Powered air-purifying and Demand
d. / Self-contained breathing apparatus and Supplied-air
____17.The symptoms of lead poisoning include ____.
a. / influenza symptomsb. / lung irritation and kidney damage
c. / abdominal cramps and lung irritation
d. / metallic taste, loss of appetite, nausea, abdominal cramps, and insomnia
____18.The symptoms of exposure to high concentrations of cadmium fumes include ____.
a. / influenza symptomsb. / lung irritation and kidney damage
c. / abdominal cramps and lung irritation
d. / metallic taste, loss of appetite, nausea, abdominal cramps, and insomnia
____19.The symptoms of exposure to zinc fumes include ____.
a. / influenza symptomsb. / lung irritation and kidney damage
c. / abdominal cramps and lung irritation
d. / metallic taste, loss of appetite, nausea, abdominal cramps, and insomnia
____20.____ is a gas that is produced by the ultraviolet radiation in the air in the vicinity of welding operations.
a. / Argon / c. / Ozoneb. / Phosgene / d. / Carbon dioxide
____21.____ is formed when ultraviolet radiation decomposes chlorinated hydrocarbon.
a. / Argon / c. / Ozoneb. / Phosgene / d. / Carbon dioxide
____22.Forced ventilation is always required when ____.
a. / natural ventilation is not availableb. / welding in areas whose ceilings are lower than 16 feet
c. / welding in areas less than 10,000 cubic feet per welder
d. / welding on metals that contain zinc, lead, beryllium, cadmium, mercury, copper, or austenitic manganese or other materials that give off hazardous fumes
____23.Which of the following is important when choosing general work clothing?
a. / It should be made of a synthetic fabricb. / It should be loosely woven, and a light color
c. / It should be tightly woven and a dark color
d. / It should have deep pockets
____24.Which is the best material to use for special protective clothing?
a. / Polyester / c. / 100% woolb. / 100% cotton / d. / leather
____25.Oxygen and fuel gas cylinders ____.
a. / can be stored separately or togetherb. / must be separated 20 feet
c. / must be separated by a 20 ft. high wall
d. / must be separated by 5 feet
____26.Acetylene cylinders that have been lying on their side must stand upright for at least ____ hours before they are used.
a. / two / c. / fourb. / three / d. / five
____27.____ fire extinguishers are used for combustible solids.
a. / Type A / c. / Type Cb. / Type B / d. / Type D
____28.____ fire extinguishers are used for electrical fires.
a. / Type A / c. / Type Cb. / Type B / d. / Type D
____29.____ fire extinguishers are used for combustible metals such as zinc and magnesium.
a. / Type A / c. / Type Cb. / Type B / d. / Type D
____30.Which of the following is the symbol for a Type C fire extinguisher?
a. / A green triangle / c. / A blue circleb. / A Red square / d. / A yellow star
____31.If a nut or bolt is too tight to loosen with a wrench ____.
a. / use a cheater bar / c. / use a smaller wrenchb. / use a longer wrench / d. / cut the nut or bolt off
____32.Welding cable must be spliced ____ the electrode holder.
a. / within 10 feet of / c. / within 20 feet ofb. / more than 10 feet away from / d. / more than 20 feet away from
____33.To test a grinding stone for cracks ____.
a. / tap the stone in four placesb. / visually inspect the stone
c. / shine a light under the stone
d. / wet the stone and look for bubbles
____34.When drilling, if the metal shavings coming out of the hole become long, ____.
a. / apply additional downward pressureb. / stop drilling
c. / stop downward pressure
d. / sweep them away with your hand
____35.The base of a ladder should be set out a distance equal to ____ the height to the point of support.
a. / one-fourth of / c. / one and a half timesb. / half of / d. / twice
Completion
Complete each statement.
36.Acetylene is absorbed in ______.
37.Highly combustible materials should be ______feet or more away from any welding.
38.Green hoses are to be used only for ______.
39.Amps is the abbreviation for amperes, which is a measure of electric ______.
Short Answer
40.What is an MSDS?
41.How does a fire extinguisher work, and how should it be used?