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

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

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

What disadvantage is associated with the microscopy method?

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

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