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rolab97 rolab97
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6 years ago
What will happen to the Rockwell steel ball penetrator, if it it used for testing hard steels?
 
  A) It will become embedded in the specimen B) It will flatten and become inaccurate
  C) It will roll and cause the specimen to fly out D) None of the above

 Q. 2

Five thread forms used on translating screws are:
 
  A) Buttress, modified square, square, Acme, and stub Acme
  B) Modified square, square, Acme, American National standard and Acme
  C) Acme, Buttress, Whitworth, square and modified square
  D) Square, stub Acme, Acme , Unified and Buttress
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FakeUserFakeUser
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6 years ago
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