A. Linear with radius for turbulent flow only
B. Linear with radius for laminar flow only
C. Linear with radius for both laminar & turbulent flow
D. Parabolic with radius for both laminar & turbulent flow
Related Mcqs:
- Bernoulli’s equation for fluid flow is derived following certain assumptions. Out of the assumptions listed below, which set of assumptions is used in derivation of Bernoulli’s equation? A. Fluid flow is frictionless & irrotational. B. Fluid flow is steady. C. Fluid flow is uniform & turbulent. D. Fluid is compressible. E. Fluid is incompressible ?
A. A, C, D
B. B, D, E
C. A, B, E
D. A, D, E - The rate of shear versus the shear stress curves are time dependent for _____________ fluid?
A. Thixotropic
B. Rheopectic
C. Both A. & B.
D. Neither A. nor B. - The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonian fluid in a circular pipe is_____________________?
A. 0.5
B. 1
C. 2
D. 0.66 - A Bingham fluid of viscosity μ = 10 Pa.s and yield stress, η0 = 10 KPa, is shared between flat parallel plates separated by a distance of 10-3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is________________?
A. 10 KPa
B. 20 KPa
C. 30 KPa
D. 40 KPa - As per Newton’s law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to (where, μ = fluid viscosity) ?
A. 1/μ
B. μ
C. μ2
D. 1/μ2 - A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an _____________ fluid?
A. Newtonian
B. Non-Newtonian
C. Ideal
D. Incompressible - A stream tube is that, which has ______________________ cross-section entirely bounded by stream lines?
A. A circular
B. Any convenient
C. A small
D. A large - Shear stress in a fluid flowing in a round pipe_________________?
A. Varies parabolically across the cross-section
B. Remains constant over the cross-section
C. Is zero at the centre and varies linearly with the radius
D. Is zero at the wall and increases linearly to the centre - A fluid whose apparent viscosity increases with shear rate is termed as the _____________ fluid?
A. Newtonian
B. Viscous
C. Dilatant
D. Non-viscous - Experimental study of laminar fluid flow through a circular tube was conducted by____________________?
A. Reynolds
B. Hagen and Poiseuille
C. Pascal
D. Blake-Plummer
