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qwerqwerqer qwerqwerqer
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6 years ago
When a carbon steel cutting tool such as a drill is heated to a blue color, it has:
 
  A) Been re-tempered and is softer B) Been re-tempered and is harder
  C) Lost its temper D) Not been affected all

 Q. 2

Steels are often alloyed with planned amounts of nonferrous metal such as:
 
  A) Molybdenum and tungsten B) Hydrogen, nitrogen and oxygen
  C) Aluminum and magnesium D) Sulfur, phosphorus and hydrogen

 Q. 3

The tailstock center is adjusted by means of a camlock on the bottom of the tailstock.
 
  Indicate whether the statement is true or false
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npandelos1npandelos1
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6 years ago
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qwerqwerqer Author
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#2
6 years ago
This is very helpful, my teacher this year is not good
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