Vickers Hardness Testing Quiz
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Questions and Answers

What type of materials can be tested using the Vickers hardness test?

  • Brittle materials like glass and ceramics
  • Soft materials like rubber and plastic
  • Very hard materials like mild steel and case hardened steel (correct)
  • Moderately hard materials like brass, copper, and aluminum
  • What happens when moderately hard materials like brass, copper, and aluminum are tested using the Vickers hardness test?

  • The material becomes softer
  • The indentor makes a deep impression (correct)
  • The material becomes harder
  • The indentor makes a very shallow impression
  • What is the formula for Vickers hardness number (VHN)?

  • $VHN = \frac{Load}{Sloping or pyramidal area of the indentation}$ (correct)
  • $VHN = Load \div Sloping area$
  • $VHN = Load \times Sloping area$
  • $VHN = 2 \times Load \times Sloping area$
  • How are the diagonals of the impression measured in the Vickers hardness test?

    <p>By means of the measuring equipment</p> Signup and view all the answers

    Why is the Vickers hardness test suitable for testing polished and hardened material surfaces?

    <p>Due to small impressions made by the indentor</p> Signup and view all the answers

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