Particle Size Analysis Methods
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Questions and Answers

What instrument is used for the microscopy method to measure the projected diameter of particles?

  • Optical microscope (correct)
  • Mechanical shaker
  • Coulter-Current
  • Pipette

    • What is the size range for the sieving method using a mechanical shaker?

  • 50 to 1500 micron (correct)
  • 0.2 to 100 micron
  • 0.5 to 500 micron
  • 1 to 200 micron

    • In the sedimentation method, what is measured using the Anderson Pipette?

  • Equivalent volume diameter
  • Projected diameter
  • Conductivity
  • Stoke diameter (correct)

    • What is the size range for the conductivity method using a Coulter-Current or Royco/HIAC instrument?

    <p>0.5 to 500 micron</p> Signup and view all the answers

    Which method allows particle size analysis by transmission electron microscope in the range of 0.001–0.1 micron?

    <p>Microscopy</p> Signup and view all the answers

    What advantage does the microscopy method have over the sieving method?

    <p>Easy and convenient</p> Signup and view all the answers

    What disadvantage is associated with the microscopy method?

    <p>No estimation of particle depth (thickness)</p> Signup and view all the answers

    What type of sieve analysis utilizes individual sieves rather than a complete nest of sieves?

    <p>&quot;Air jet&quot; sieve analysis</p> Signup and view all the answers

    What does the air jet do in the air jet sieving method?

    <p>&quot;Blows oversize particles away from the mesh&quot;</p> Signup and view all the answers

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