LA City Welder Certification Quiz!

16 Questions | Total Attempts: 2188

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LA City Welder Certification Quiz!

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Questions and Answers
  • 1. 
    When may studs be furnished without flux?
    • A. 

      Studs do not require flux

    • B. 

      Never

    • C. 

      Less than 5/16" diameter studs

    • D. 

      1/4" diameter studs

  • 2. 
    What is the maximum diameter of E7018 electrode that can be used for a weld in the vertical position?
    • A. 

      5/32"

    • B. 

      1/8"

    • C. 

      1/4"

    • D. 

      7/32"

  • 3. 
    What  is the maximum  prequalified size a single pass 2F weld on  ASTM A 36 plate be according to AWS D1.1, if welded with an E 7018 electrode?
    • A. 

      3/8"

    • B. 

      1/2"

    • C. 

      5/16"

    • D. 

      1/4"

  • 4. 
    What size spacer is required on a prequalified joint B-U3a-S?
    • A. 

      1/4" x 1/2"

    • B. 

      1/8" x 5/8"

    • C. 

      1/4" x 3/16"

    • D. 

      1/4" x 5/8"

  • 5. 
    For a joint with a base metal 3/4" thick, what designation hole type IQI should be used?
    • A. 

      20

    • B. 

      10

    • C. 

      12

    • D. 

      17

  • 6. 
    Prequalified welding procedures may be used to weld studs with the following process______
    • A. 

      FCAW, GMAW, SMAW

    • B. 

      SMAW

    • C. 

      GTAW, GMAW

    • D. 

      Prequalified welding process are not acceptable for welding studs

  • 7. 
    For what position(s) is/are a WPS qualified when the qualification test welds are slot welds in the horizontal position?
    • A. 

      Flat and horizontal

    • B. 

      All except overhead

    • C. 

      All

    • D. 

      Horizontal

  • 8. 
    For GMAW, the shielding gases must exhibit a dew point of ________?
    • A. 

      -20 degrees F[ -20 degrees C ] or lower

    • B. 

      -40 degrees F  [-40 degrees C] or lower

    • C. 

      -40 degrees F

    • D. 

      -20 degrees C or lower

  • 9. 
    Which of the following electrodes can be used on a weathering steel like ASTM A558?
    • A. 

      EXXXX-B2L

    • B. 

      E6010

    • C. 

      E7018

    • D. 

      Option4

  • 10. 
    When stress relieving a weldment at a temperature of 150 degrees F below the minimum specified temperature, what is the minimum holding time per inch of thickness?
    • A. 

      2 hours

    • B. 

      4 hours

    • C. 

      10 hours

    • D. 

      20 hours

  • 11. 
    On flexible connections, the maximum length of the end return is _______times the nominal size of weld?
    • A. 

      3

    • B. 

      4

    • C. 

      5

    • D. 

      2

  • 12. 
    What is the root opening for a prequalified joint TC-U4a with a 45 degree angle?
    • A. 

      1/8"

    • B. 

      3/8"

    • C. 

      Not specified

    • D. 

      1/4"

  • 13. 
    Using E6010 in the 3G position what is the maximum electrode diameter?
    • A. 

      3/16"

    • B. 

      5/32"

    • C. 

      1/4"

    • D. 

      5/16"

  • 14. 
    The recommended nominal thickness of backing bars for the GMAW process is
    • A. 

      1/4"

    • B. 

      1/8"

    • C. 

      3/16"

    • D. 

      Not specified

  • 15. 
    What percentage of wire feed speed would require a WPS requalification for the FCAW process?
    • A. 

      >25%

    • B. 

      No change

    • C. 

      > 10%

    • D. 

      <15%

  • 16. 
    What is the minimum fillet weld size requirement for welding a 7/8" stud?
    • A. 

      3/16"

    • B. 

      1/4"

    • C. 

      1/8"

    • D. 

      5/16"

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