117 Dairy Technology- ICAR JRF/SRF 2024 MCQ (Single Correct) +4 −1 In case of ice cream, increasing shear rate leads to in viscosity A Increase Correct Incorrect B Decrease Correct Incorrect C No change Correct Incorrect D Elastic deformation Correct Incorrect Check Answer EXPLANATION Non-Newtonian Fluid Flow & Time-Dependent Rheology: Thixotropic, Pseudoplastic & Herschel-Bulkley Rheology of Ice Cream:Ice cream mix and melted ice cream exhibit non-Newtonian pseudoplastic (shear-thinning) flow behavior ($n \lt 1$).As shear rate ($\dot{\gamma}$) increases, hydrodynamic forces progressively align asymmetric macromolecular hydrocolloids (stabilizer gums), disentangle polymer chains, and break up flocculated fat globule clusters.This structural streamlining reduces flow resistance, resulting in a continuous decrease in apparent viscosity ($\eta$).Correct Option: Option 2 (Decrease). Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report Mismatch त्रुटि बताएं Prev Next