Question Bank • QB_SUB_DFE_RHE_002 MCQ • 1 Mark

Section 7: Dairy and Food Engineering

Food Rheology & Non-Newtonian Flow

Subtopic: Time-dependent rheology: Thixotropy vs Rheopexy

Question Statement:

A food liquid whose apparent viscosity decreases continuously with time under constant shear rate and recovers upon resting exhibits:

Options:

  • (A) Thixotropy
  • (B) Rheopexy
  • (C) Dilatancy
  • (D) Bingham plasticity

Answer Key:

A

Step-by-Step Solution & Explanation

Thixotropy is time-dependent shear-thinning behavior where viscosity breaks down under prolonged shear and reforms at rest.
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