ChE 483: Special Topics in Chemical Engineering - Particle Density and Force Balance
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Questions and Answers

What is the primary consideration for storing coarse solids like gravel?

  • Particle size
  • Cost-effectiveness (correct)
  • Material value
  • Solubility

Why are valuable or soluble solids stored in silos, bins, or hoppers?

  • For ease of transportation
  • To prevent contamination (correct)
  • For long-term storage
  • For temporary storage purposes

What type of storage is used for temporary solids storage before feeding to a process?

  • Bulk storage
  • Container storage
  • Silo storage
  • Hopper storage (correct)

What is a characteristic of solid particles in terms of pressure?

<p>They exert pressure on the side walls of a container and on the floor (B)</p> Signup and view all the answers

What is a difference between solid particles and fluids in terms of pressure?

<p>The pressure of solid particles is affected by friction at the wall (C)</p> Signup and view all the answers

What is the effect of friction on the pressure exerted by solid particles on the floor of a container?

<p>It decreases the pressure (B)</p> Signup and view all the answers

What is a characteristic of solid particles that differs from fluids?

<p>There is friction between the wall and the particles (A)</p> Signup and view all the answers

Why is hopper storage used for temporary solids storage?

<p>To facilitate feeding to a process (A)</p> Signup and view all the answers

What is a characteristic of solid particles in terms of flow?

<p>They can flow through openings and be pumped (D)</p> Signup and view all the answers

What is the primary advantage of bulk storage for coarse solids like gravel?

<p>It is a cost-effective method (B)</p> Signup and view all the answers

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