Grinding and Particle Size Reduction
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Questions and Answers

What is the process of reducing something to small particles by crushing or rubbing it?

  • Scrubbing
  • Rinsing
  • Polishing
  • Grinding (correct)

Which of the following is NOT a method of reducing something to small particles?

  • Grinding
  • Chopping
  • Shredding
  • Slicing (correct)

What is the opposite of enlarging or expanding something?

  • Narrowing
  • Expanding
  • Grinding (correct)
  • Widening

What is the aim of the 'rule crusher' experiment?

<p>To determine a retainer's constant, bonds constant, and x constant (C)</p> Signup and view all the answers

What does the 'cell' in the roller crusher do?

<p>Protects the roller crusher from wearing (B)</p> Signup and view all the answers

What is the purpose of the movable earrings and springs in the roller crusher?

<p>To prevent damage from unbreakable materials (D)</p> Signup and view all the answers

What type of rollers are used for hard material crushing in a double roll crusher?

<p>Slugger rolls (B)</p> Signup and view all the answers

What is the function of the circular crushing rings in a double roll crusher?

<p>To crush medium hard to hard material (B)</p> Signup and view all the answers

What is the role of rear resistant metals in the construction of a roll crusher?

<p>To provide casing for the segments (B)</p> Signup and view all the answers

What determines the type of rulers used in a double roll crusher?

<p>The properties of the field (C)</p> Signup and view all the answers

What does the clearance between two rollers depend on in a roll crusher?

<p>The change of the final product size (B)</p> Signup and view all the answers

What is the role of inward learning in roller crushers?

<p>Rotating in an inward direction at the first (D)</p> Signup and view all the answers

What is an important function of strategy circular crushing rings in roller crushers?

<p>Crushing medium-hard to hard material (D)</p> Signup and view all the answers

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