Electrical Conductivity and Fabrication of Nonferrous Materials
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Questions and Answers

Which alloying material is present in beryllium copper in an amount less than 2%?

  • Aluminum
  • Beryllium (correct)
  • Zinc
  • Magnesium

What property of aluminum can be doubled with vigorous cold or hot working?

  • Melting point
  • Tensile strength (correct)
  • Ductility
  • Electrical conductivity

What is the range of tensile strength for copper alloys as mentioned in the text?

  • 200 MPa to 1000 MPa
  • 300 MPa to 1200 MPa
  • 200 MPa to 690 MPa
  • 200 MPa to 1380 MPa (correct)

For what purpose is copper with less than 5% alloying material used?

<p>Low-resistance electrical wiring (D)</p> Signup and view all the answers

What are copper-zinc alloys commonly known as?

<p>Brasses (A)</p> Signup and view all the answers

Which property influences the decision to use copper in heat exchangers?

<p>Corrosion resistance (C)</p> Signup and view all the answers

'Roll forming' is a process commonly used with which commercial form of aluminum alloys?

<p>Sheets (C)</p> Signup and view all the answers

'Indirect arc' is a term associated with which industrial process?

<p>Induction furnaces (D)</p> Signup and view all the answers

'Coining' refers to shaping aluminum by:

<p>Stamping (C)</p> Signup and view all the answers

What is a common application for aluminum alloys mentioned in the text?

<p>Coining (C)</p> Signup and view all the answers

What material is commonly used for low-resistance electrical wiring and conductors?

<p>Copper alloys (D)</p> Signup and view all the answers

Which alloying material is found in beryllium copper in an amount less than 2%?

<p>Beryllium (D)</p> Signup and view all the answers

What process can be used with all wrought aluminum alloys according to the text?

<p>Machining (A)</p> Signup and view all the answers

What is the tensile strength range of copper alloys based on the text?

<p>$200 MPa - 690 MPa$ (B)</p> Signup and view all the answers

What property of copper alloys makes them harder and brittle when cold worked?

<p>$Ductility$ (A)</p> Signup and view all the answers

What influences the decision to use copper in a variety of parts according to the text?

<p>$Resistance to corrosion$ (B)</p> Signup and view all the answers

Which property of aluminum can be doubled with vigorous cold or hot working?

<p>Tensile strength (D)</p> Signup and view all the answers

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