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jina jina
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6 years ago
What are a ball penetrator and a diamond penetrator used for?
 
  A) A Rockwell A and a Rockwell B hardness test
  B) A Rockwell C and a Rockwell D hardness test
  C) A Rockwell D and a Rockwell E hardness test
  D) A Rockwell B and a Rockwell C hardness test
  E) None of the above

 Q. 2

Cast irons are classified as:
 
  A) Ductile B) Malleable cast C) Gray cast D) All of the above
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elieli
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6 years ago
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jina Author
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6 years ago
Smiling Face with Open Mouth that's the expression my face made when I got the notification email
eli
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#3
6 years ago
glad I put that smile on your face Happy Dummy
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