With increase in the shear rate, the apparent viscosity of pseudo-plastic fluids__________________?
Correct answer: B. Decreases
- A. Increases
- B. Decreases
- C. Remain same
- D. May increase or decrease; depends on the magnitude of shear rate
Explanation
A pseudoplastic fluid is shear-thinning: increasing shear rate reduces its apparent viscosity. This distinguishes it from a Newtonian fluid, whose viscosity remains constant with shear rate.
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