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supernumerary supernumerary
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6 years ago
A Category IV operates with
 
  A) a low temperature, negative pressure vent B) a low temperature, positive pressure vent
  C) a high temperature, positive pressure vent D) a high temperature, negative pressure vent

 Q. 2

FCAW most often utilizes:
 
  A) V-groove drive rolls B) Smooth drive rolls
  C) Knurled drive rolls D) U-groove drive rolls

 Q. 3

Which of the following keeps the flame from entering the hoses and regulator?
 
  a. Oxygen shutoff valve
  b. Acetylene shutoff valve
  c. Flame suppressor
  d. Flashback arrestor
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bribri
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6 years ago
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supernumerary Author
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#2
6 years ago
Thank you for answering
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