Chemical Engineering > GATE 2021 > Rheology
Consider a fluid confined between two horizontal parallel plates and subjected to shear flow.
In the first experiment, the plates are separated by a distance of 1 mm. It is found that a shear stress of 2 N m-2 has to be applied to keep the top plate moving with a velocity of 2 m s-1 while the other plate is fixed.
In the second experiment, the plates are separated by a distance of 0.25 mm. It is found that a shear stress of 3N m-2 has to be applied to keep the top plate moving with a velocity of 1 m s-1 while the other plate is fixed.
In the range of shear rates studied, the rheological character of the fluid is
In the first experiment, the plates are separated by a distance of 1 mm. It is found that a shear stress of 2 N m-2 has to be applied to keep the top plate moving with a velocity of 2 m s-1 while the other plate is fixed.
In the second experiment, the plates are separated by a distance of 0.25 mm. It is found that a shear stress of 3N m-2 has to be applied to keep the top plate moving with a velocity of 1 m s-1 while the other plate is fixed.
In the range of shear rates studied, the rheological character of the fluid is
Correct : b
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