Question Bank • QB_SUB_DFE_HMG_003 MSQ • 2 Marks

Section 7: Dairy and Food Engineering

Unit Operations in Dairy and Food Engineering

Subtopic: Homogenization

Question Statement:

Which physical phenomena contribute to the breakdown of fat globules inside a high-pressure homogenization valve?

Options:

  • (A) Intense hydraulic shear in the narrow annular valve seat clearance
  • (B) Cavitation explosion resulting from localized static pressure dropping below milk vapor pressure
  • (C) High-velocity impact of the jet against the impact ring
  • (D) Nuclear magnetic resonance splitting

Answer Key:

A, B, C

Step-by-Step Solution & Explanation

Fat globule disintegration occurs through three combined hydrodynamic effects: intense laminar/turbulent shear, cavitation bubble collapse, and high-velocity impingement against the ceramic/tungsten impact ring.
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