A Newtonion fluid is that

A Which follows Newton
B Which needs a minimum shear, before it starts deforming
C For which shear & deformation are related as $$\tau = \mu \frac{{\partial {\text{u}}}}{{\partial {\text{y}}}}$$
D None of these

Correct Answer: For which shear & deformation are related as $$\tau = \mu \frac{{\partial {\text{u}}}}{{\partial {\text{y}}}}$$

Bissoy MCQ
#Chemical Engineering #Fluid Mechanics

Related Questions

A fluid is termed as the Newtonion fluid, when the shear stress is __________ the velocity gradient.
A Independent of
B Inversely proportional to
C Directly proportional to
D None of these
For turbulent flow of newtonion fluid in a circular cross-section pipe, the ratio of maximum to average fluid velocity is
A 0.5
B 1
C 0.66
The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonion fluid in a circular pipe is
A 0.5
B 1
C 2
D 0.66
Laminar flow of a Newtonion fluid ceases to exist, when the Reynolds number exceeds
A 4000
B 2100
C 1500
D 3000
Sewage sludge is __________ type of non-Newtonion fluid.
A Dilatant
B Bingham plastic
C Pseudo plastic
D None of these
An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonion fluid beyond yield stress. Which of the following is an ideal plastic?
A Sewage sludge
B Rubber latex
C Blood
D Sugar solution
For laminar flow of Newtonion fluid in a circular pipe, the velocity distribution is a function of the distance 'd' measured from the centre line of the pipe, and it follows a __________ relationship.
A Logarithmic
B Parabolic
C Hyperbolic
D Linear
A Newtonion liquid (ρ = density, μ = viscosity) is flowing with velocity v in a tube of diameter 'D'. Let Δp be the pressure drop across the length 'L'. For a laminar flow, Δp is proportional to
A L ρv²/D
B L μ;V/D²
C D ρv²/L
D Μ V/L
Power required for mixing Newtonion fluids is a function of the
A Speed of impeller, diameter of impeller & viscosity
B Density & viscosity of fluid only
C Density of fluid, viscosity of fluid & impeller dia only
D None of these
The velocity profile exhibited by laminar flow of Newtonion fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an __________ with the apex at the centre line of the pipe.
A Hyperbola
B Parabola
C Semi-circle
D Semi-ellipse

Next steps