The rate of shear versus the shear stress curves are time dependent for _____________ fluid?
Correct answer: C. Both A. & B.
- A. Thixotropic
- B. Rheopectic
- C. Both A. & B.
- D. Neither A. nor B.
Explanation
Thixotropic and rheopectic fluids show time-dependent rheological behaviour: their stress-rate relationship changes with the duration of shearing. Thixotropic fluids generally thin with time, whereas rheopectic fluids thicken with time.
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