Welding Safety Test 2019-20

62 Questions | Total Attempts: 253

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Welding Safety Test 2019-20

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.


Questions and Answers
  • 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