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sslong79 sslong79
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6 years ago
Since the advent of oxyacetylene welding in 1836, how many welding processes have appeared?
 
  A) Over 50 B) Over 200 C) Over 100 D) Over 150

 Q. 2

Pneumatic controls operate by
 
  A) Electricity B) Air pressure
  C) Hydraulic pressure D) Water pressure
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Same.shaSame.sha
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6 years ago
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sslong79 Author
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6 years ago
Thank you so much for providing this
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