When making fillet welds on aluminum plate in the flat (1F) position, run the second bead along a ...

When making fillet welds on aluminum plate in the flat (1F) position, run the second bead along a toe of the
  first weld, overlapping the first bead by _____.
 
  a. 30 percent
  b. 50 percent
  c. 75 percent
  d. 90 percent

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[Ques. 2] In fillet welds, the weld position is determined by the orientation of the workpiece and the _____.
 
  a. axis of the weld
  b. size of the weld
  c. profile of the weld
  d. convexity of the weld

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[Ques. 3] GMAW electrode extension for spray transfer varies between _____.
 
  a. 1/16 to 1/8 (1.6 to 3.2 mm)
  b. 3/16 to 3/8 (5 to 10 mm)
  c. 1/2 to 1 (13 to 25 mm)
  d. 1-1/4 to 1-1/2 (32 to 38 mm)

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[Ques. 4] Which of the following gases can cause rapid and uncontrolled combustion around flammable materials or
  sparks?
 
  a. Oxygen
  b. Nitrogen
  c. Helium
  d. Argon

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[Ques. 5] The width of a weave bead is determined by the amount of _____.
 
  a. side-to-side motion
  b. electrode stickout
  c. voltage
  d. flux