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supernumerary supernumerary
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6 years ago
How do water and carbon dioxide relate to combustion?
 
  A) Carbon dioxide is a product of combustion, not water.
  B) Water is a product of combustion, not carbon dioxide.
  C) Both are stable and safe products of combustion.
  D) Both are unstable, dangerous products of combustion.

 Q. 2

GMAW normally uses:
 
  A) DCEP B) DCEN
  C) AC D) AC - High Frequency
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tcshepherd13tcshepherd13
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6 years ago
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supernumerary Author
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#2
6 years ago
Nice!
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#3
6 years ago
Happy Dummy
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