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sila sila
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6 years ago
What type of venting is used for oil furnaces?
 
  A) Type L vent B) Class A chimney
  C) Type B vent D) Either a class A chimney or a type L vent

 Q. 2

Which cast irons are considered weldable?
 
  A) Ductile iron B) Malleable cast iron C) Nodular cast iron D) All of the above
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saysaysaysay
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6 years ago
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sila Author
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#2
6 years ago
These are correct! Thank you very much!!!
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