Mixing Classification Quiz
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Questions and Answers

What is the main reason for considering mixing as a critical factor in the manufacture of tablets or granules?

  • To decrease the production time
  • To improve the taste of the tablets or granules
  • To reduce the cost of production
  • To ensure uniform distribution of additives (correct)
  • Which mechanism of powder mixing involves the dispersion of solid particles in each other by moving them from one position to another?

  • Convective mixing (correct)
  • Negative mixing
  • Shear mixing
  • Neutral mixing
  • In powder mixing, which factor determines the predominance and extent of each mixing mechanism?

  • Temperature of the mixer
  • Size of the mixing vessel
  • Flowability of the powder components (correct)
  • Density of the powder components
  • What type of mixing occurs when a 'layer' of material moves or flows over another 'layer'?

    <p>Shear mixing</p> Signup and view all the answers

    Which type of mixing is essential in the manufacturing process of tablets or granules?

    <p>Solid/Solid mixing</p> Signup and view all the answers

    What is the primary reason for adding additives in the mixing process for tablets or granules?

    <p>To enhance the flowability of the powder components</p> Signup and view all the answers

    Which factor can enhance flow and improve mixing efficiency?

    <p>Particle size and size distribution</p> Signup and view all the answers

    What can lead to segregation upon mixing?

    <p>Particle size and size distribution</p> Signup and view all the answers

    Which type of particles possess attractive forces such as Van Der Waals, electrostatics, and surface tension resulting in cohesion and poor flow properties?

    <p>Very fine particles</p> Signup and view all the answers

    What is the reason for poor flowability due to friction?

    <p>Rough surface particles</p> Signup and view all the answers

    What accelerates de-mixing (segregation) when the smaller particles have a higher density?

    <p>Particle density</p> Signup and view all the answers

    What can neutralize similar charges on the particles to overcome segregation due to repulsion or attraction?

    <p>Adding wetting agent</p> Signup and view all the answers

    How can the best homogeneous mixture be obtained?

    <p>Mixing in equal proportions (1:1)</p> Signup and view all the answers

    What type of mixing indicates that each particle of one component lies as nearly as possible in contact with a particle of each of the other?

    <p>Perfect (Ideal) mixing</p> Signup and view all the answers

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