Welding Safety Test 2019-20
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Welding is the process of joining materials – usually metals or thermoplastics – by causing fusion, a method of metal-joining technique that involves melting the base metal. Must pass the test with a 80% or better to enter the shop.
- 1.Potential hazards relating to arc welding are
- A.
Radiation
- B.
Fumes
- C.
Toxic gases
- D.
All of the above
- 2.When using a fire extinguisher to extinguish a fire, it should be
- A.
Pointed at the base of the fire
- B.
Moved up and down to cool the flames
- C.
Pointed at the top of the fire
- D.
Held within six (6) inches of the flames
- 3.What type of fire extinguisher should be used on electrical fires?
- A.
Type A
- B.
Type B
- C.
TypeC
- D.
Type D
- 4.What are the initials of the federal organization created to insure safe and sanitary working conditions for employees?
- A.
FAA
- B.
IRS
- C.
FDA
- D.
OSHA
- 5.The maximum safe working pressure for Acetylene is
- A.
10 psi.
- B.
15 psi.
- C.
20 psi.
- D.
32 psi.
- 6.Vaporized metals, such as zinc, cadmium, lead, chromium and beryllium
- A.
Are hazardous
- B.
Can be ignored
- C.
Are highly flammable
- D.
May cause slag inclusions
- 7.Fuel gas hoses are usually colored
- A.
Green
- B.
Red
- C.
Blue
- D.
Yellow
- 8.One should never enter a welding shop without wearing
- A.
Gloves
- B.
Safety glasses
- C.
A welding helmet
- D.
Welding leathers
- 9.What should one never use on gas cylinders, regulators, connections and hoses?
- A.
Wrenches
- B.
Teflon tape
- C.
Leak detectors
- D.
Oil
- 10.One should never cut or weld directly against
- A.
Cast iron
- B.
Concrete
- C.
A workbench
- D.
A non-flammable surface
- 11.One should never operate arc welding equipment while
- A.
Standing on wet or damp floors
- B.
In poorly lighted areas
- C.
Someone is standing near by
- D.
In a confined area with proper ventilation
- 12.A burn that causes the skin to blister is referred to as a
- A.
First degree burn
- B.
Second degree burn
- C.
Third degree burn
- D.
Fourth degree burn
- 13.Federal regulation requires that hazardous information about a product be provided to all users of that product. The form used to provide this information is called a(n)
- A.
Information Form (IF)
- B.
Hazardous Information Sheet (HIS)
- C.
Occupational Safety and Hazard Form (OSHF)
- D.
Material Safety Data Sheet (MSDS)
- 14.Which of the following is the only acceptable method for lighting oxyfuel torches?
- A.
Matches
- B.
Cigarette lighter
- C.
Welding arc
- D.
Striker
- 15.Areas that have less than__________ cubic feet per welder, or that have ceilings less than 16 feet high, require forced ventilation.
- A.
8,000
- B.
4,000
- C.
10,000
- D.
12,000
- 16.While welding, ventilation should be placed as close to the fume source as practical.
- A.
True
- B.
False
- 17.Long hair, loose-fitting clothes, and ties are personal safety hazards around rotating equipment.
- A.
True
- B.
False
- 18.A butane or propane cigarette lighter is safe around welding equipment as long as it is kept in one's pocket.
- A.
True
- B.
False
- 19.A fully charged oxygen cylinder contains approximately 225 psi at 70° F.
- A.
True
- B.
False
- 20.Safety glasses are not required when welding with the helmet down.
- A.
True
- B.
False
- 21.Skin contact with liquid oxygen can cause frostbite.
- A.
True
- B.
False
- 22.Gas cylinders must be chained or secured at all times.
- A.
True
- B.
False
- 23.Oxygen cylinders should never be stored with flammable gases such as acetylene cylinders.
- A.
True
- B.
False
- 24.When not in use, an electrode holder, GTAW torch or MIG gun should not be placed in contact with a grounded metal surface.
- A.
True
- B.
False
- 25.Acetylene cylinders should never be operated while lying on their side because acetone could be drawn into the valve, regulator and hoses.
- A.
True
- B.
False
- 26.One should never touch an electrode to a metal surface other than the workpiece because those surfaces may become electrically live.
- A.
True
- B.
False
- 27.Burns are some of the most common and painful injuries in a welding shop.
- A.
True
- B.
False
- 28.Fuel gas fittings are equipped with left hand threads.
- A.
True
- B.
False
- 29.Of the following, which is not a requirement for the SMAW process?
- A.
Electricity
- B.
Gas supply
- C.
Base metal
- D.
Filler metal
- 30.Which of the following is an incorrect statement about an E7018 electrode?
- A.
Once opened, it should be kept in an electrode oven.
- B.
The weld deposit has a minimum tensile strength of 70,000 psi.
- C.
It is suitable for use in the flat and horizontal fillet positions only.
- D.
It is suitable for use in all positions.
- E.
It is a low hydrogen electrode.
- 31.Which of the following electrodes would you select to produce a weld with shallow penetration?
- A.
E6010
- B.
E6011
- C.
E6013
- D.
E7018
- 32.In order to reduce waste and control cost, you should weld until the electrode is
- A.
One half inch from the core wire
- B.
Down to the core wire
- C.
Four (4) inches form the core wire
- D.
Down to the classification numbers
- 33.GMAW is the abbreviation for?
- A.
Gas Machine Arc Welding
- B.
Gas Method Arc Welding
- C.
Gas Material Arc Welding
- D.
Gas Metal Arc Welding
- 34.In GMAW, insufficient gas flow can cause?
- A.
Undercut
- B.
Overlap
- C.
Porosity
- D.
Hydrogen cracking
- 35.The benefit of copper coated electrode wires is
- A.
Better arc starts
- B.
Increased contact tip life
- C.
Improved wire feeding
- D.
All of the above
- 36.In GMAW, the amperage is controlled by adjusting the
- A.
Voltage
- B.
Wire feed speed
- C.
Wattage
- D.
Arc length
- 37.Which of the following is considered an advantage of the GMAW process?
- A.
Higher deposition rates than manual processes
- B.
Easy to use compared to manual processes
- C.
Less electrode waste than with SMAW
- D.
All of the above
- 38.Excessive amounts of weld spatter in the nozzle may cause
- A.
Lack of fusion
- B.
Undercutting
- C.
Poor shielding
- D.
Longitudinal cracks
- 39.Which of the following is not an advantage of the GMAW process?
- A.
Higher deposition rates
- B.
Relatively easy process for a beginner to learn
- C.
Can be used to weld ferrous and nonferrous metals
- D.
Good for use in windy areas
- 40.Which shielding gas or gas mixture is most often used for welding carbon steel with the short-circuiting transfer mode?
- A.
100% Argon
- B.
10% Carbon dioxide, 90% Helium
- C.
98% Argon, 2% Oxygen
- D.
75% Argon, 25% Carbon Dioxide
- 41.When using GTAW to weld Aluminum with Alternating Current (AC), the tip of the tungsten electrode should be
- A.
Tapered
- B.
Tapered with the end slightly blunted
- C.
Rounded at the tip
- D.
Ground at right angles to the grain of the electrode
- 42.The shielding gas most commonly used for welding low carbon steel with GTAW is
- A.
Carbon Dioxide
- B.
Argon
- C.
Helium
- D.
A mix of Argon and Helium
- 43.To remove the oxide layer from aluminum prior to welding you should
- A.
Brush the weld joint with a steel brush
- B.
Brush the weld joint with a stainless steel brush
- C.
Wipe the weld joint with a dry, clean rag
- D.
Aluminum oxides normally do not require removal
- 44.Tungsten is used for GTAW electrodes because it has which of the following properties?
- A.
High melting point
- B.
Low electrical resistance
- C.
Good heat conductivity
- D.
High electron emission
- E.
All of the above
- 45.What is the term for the width of the cut produced by any cutting process?
- A.
Drag line
- B.
Kerf
- C.
Wraparound
- D.
Slag
- 46.Which oxyacetylene flame has an excess of fuel?
- A.
Oxidizing
- B.
Neutral
- C.
Carburizing
- D.
None of the above
- 47.The oxyfuel process uses oxygen and what other types of gases?
- A.
Inert Gases
- B.
Reactive Gases
- C.
Mixed gases
- D.
Flammable gases
- 48.What type of thread and color are fuel gases fittings?
- A.
Right hand - Red
- B.
Left hand-Red
- C.
Right hand - Green
- D.
Left hand - Green
- 49.While cutting with acetylene, the oxygen working pressure is
- A.
Greater than the acetylene working pressure
- B.
Equal to the acetylene working pressure
- C.
Less that the acetylene working pressure
- D.
A constant 20 pounds per square inch
- 50.Flash burn is
- A.
Another name for a severe sunburn
- B.
A burn caused by the welding arc coming in contact with bare skin
- C.
A burn to the eye caused by exposure to ultraviolet light from the welding arc
- D.
Damage to equipment and clothing due to the extreme heat of the welding arc
- 51.Because of the low amount of ultraviolet light present, it is not necessary to use shaded lenses when oxy-fuel cutting.
- A.
True
- B.
False
- 52.Which one of the following electrodes is not suitable for use in all positions?
- A.
E6010
- B.
E6011
- C.
E7018
- D.
E7024
- 53.Eye protection must be used to:
- A.
Improve your vision
- B.
Prevent eyestrain
- C.
Prevent flying particles, foreign objects or corrosive agents from entering your eye
- D.
Magnify small objects
- 54.Floors, aisles, and passageways must be kept clear of metal, wood, tools, material, oil and grease spots, and other objects:
- A.
Unless the bell rings and you are in a hurry
- B.
Because they may cause someone to slip or trip and cause injury
- C.
Because they are unsightly and make the shop look bad
- D.
Because they cause more work for the next class or custodians
- 55.Loose clothing, jewelry, and long hair must be securely fastened or removed:
- A.
Before operating any machines
- B.
Before the end of class
- C.
Only when the instructor is watching
- D.
Only when it will not affect your image
- 56.All accidents and injuries, no matter how slight, must be:
- A.
Ignored
- B.
Reported to the high school office
- C.
Reported to the instructor immediately
- D.
None of the above
- 57.Compressed air may be used to clean sawdust off the ground:
- A.
Only when you are the only one in the shop
- B.
If no-one is looking
- C.
As long as everyone is wearing safety glasses and dressed safely
- D.
Never
- 58.Report any breakage or damage to tools, instruments, or machinery:
- A.
To no-one, just fix it. You might get in trouble
- B.
To the instructor when everyone leaves so no-one thinks you did it
- C.
To the instructor immediately
- D.
To a friend and then fix it together
- 59.Safety glasses need to be worn:
- A.
At all times in the shop
- B.
Only when grinding, chipping, cutting, or shaping metal.
- C.
Only if someone is working in the shop
- D.
Only if you don't already wear glasses
- 60.What shade lens should be worn or what shade should you set your auto darkening helmet to when welding:
- A.
Shade 3
- B.
Shade 8
- C.
Shade 5
- D.
Shade 10
- 61.Which of the following is correct about safety colors:
- A.
Safe = Green; Danger = Red; Caution = Yellow; Warning = Orange
- B.
Safe = Yellow; Danger = Orange; Caution = Red; Warning = Green
- C.
Safe = Green; Danger = Orange; Caution = Green; Warning = Yellow
- D.
Safe = Green; Danger = Red; Caution = Orange; Warning = Yellow
- 62.When clean-up is called, all scrap metal should be:
- A.
Swept or dropped onto the floor
- B.
Left in the booth or on the project you are working on
- C.
Put in a scrap barrel while wearing gloves
- D.
Left for the next class to worry about because it will be cool by then
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