Fluids for which apparent viscosity decreases with velocity gradient are called

Dilatant

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Rheopectic

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Bingham plastic

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Pseudo plastic

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Solution

The correct option is D Pseudo plastic
Pseudo plastic

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Similar questions

Q. The shear stress at a point in a liquid is found to be

0.03 {N/m}^{2}

. The velocity gradient for the fluid flow is

0.15 s^{- 1}

. What will be its viscosity (in

Poise

) ?

Q. The shear stress at a point in a liquid is found to be

0.03 {N/m}^{2}

. The velocity gradient for the fluid flow is

0.15 s^{- 1}

. What will be its viscosity (in

Poise

) ?

Two immiscible, incompressible, viscous fluids having same densities but different viscosities are contained between two infinite horizontal parallel plates, 2 m apart as shown below. The bottom plate is fixed and the upper plate moves to the right with a constant velocity of 3 m/s. With the assumptions of Newtonian fluid, steady and fully developed laminar flow with zero pressure gradient in all directions, the momentum equations simplify to

$\frac{d^{2} u}{d y^{2}} = 0$

If the dynamic viscosity of the lower fluid $μ_{2}$ , is twice that of the upper fluid $μ_{1},$ then the velocity at the interface (round off to two decimal places) is m/s.

Q. Which of the following graph shows the relation between shear stress and velocity gradient for a non-Newtonian fluid?

Q. Which of these fluids have highest viscosity?

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Fluids for which apparent viscosity decreases with velocity gradient are called

The correct option is D Pseudo plastic Pseudo plastic

The correct option is D Pseudo plastic
Pseudo plastic