3E351P Practice Test

Listed below are sample questions for 3E351P from our database. Register now to start taking tests for this AFSC! We have 329 questions currently in the database for this category.

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  • 1 . 72. (614) Confining the arc to as small an area as possible and still allowing proper fusion when welding austenitic stainless steel
    decreases carbide precipitation.
  • 2 . 92. (618) When you do metallic inert gas welding, which bead welding technique gives the best penetration?
    Backhand
  • 3 . 13. (602) To clean dust out of an arc welding machine, use
    dry compressed air.
  • 4 . 62. (611) What characteristic of helium makes it undesirable for welding thin material?
    High heat per ampere
  • 5 . In which welding process does the heat-affected area produce a greater concentrated hardness?
    Shielded Metal Arc.
  • 6 . 15. (203) What is the normal dovetail seam allowance on a sheet metal duct?
    ½ inch
  • 7 . 25. (007) If needed, you can use the box and pan brake to do most of the same type of work that can be done on a
    standard cornice brake
  • 8 . 15. (004) How many true length charts are required to lay out a square-to-square twisted pattern?
    One
  • 9 . Which layout method is used to develop patterns for rectangular, round, and square duct?
    Parallel line
  • 10 . 21. (603) An electrode that produces a gaseous shielding for the molten metal is identified as a
    cellulose-coated electrode.