A. only when the fluid is frictionless
B. only when the fluid is incompressible and has zero viscosity
C. when there is no motion of one fluid layer relative to an adjacent layer
D. irrespective of the motion of one fluid layer relative to an adjacent layer
E. in case of an ideal fluid
Related Mcqs:
- The normal stress in a fluid will be constant in all directions at a point only if_________________?
A. it is incompressible
B. it has uniform viscosity
C. it has zero viscosity
D. it is frictionless
E. it is at rest. - The pressure at a point in a fluid will not be same in all the directions when the fluid is________________?
A. moving
B. viscous
C. viscous and static
D. inviscous and moving
E. viscous and moving - If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be_________________?
A. higher than the surface of liquid
B. the same as the surface of liquid
C. lower than the surface of liquid
D. unpredictable
E. none of the above - The property of a fluid which enables it to resist tensile stress is known as________________?
A. compressibility
B. surface tension
C. cohesion
D. adhesion
E. viscosity. - The stress-strain relation of the newtoneon fluid is________________?
A. linear
B. parabolic
C. hyperbolic
D. inverse type
E. none of the above - The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to____________________?
A. Buoyancy
B. Equilibrium of a floating body
C. Archimedes’ principle
D. Bernoulli’s theorem
E. Metacentric principle - In the case of steady flow of a fluid, the acceleration of any fluid particle is__________________?
A. constant
B. variable
C. zero
D. zero under limiting conditions
E. never zero - Liquids transmit pressure equally in all the directions. This is according to_________________?
A. Boyle’s law
B. Archimedes principle
C. Pascal’s law
D. Newton’s formula
E. Chezy’s equation - An ideal flow of any fluid must satisfy ___________________?
A. Pascal law
B. Newton’s law of viscosity
C. boundary layer theory
D. continuity equation
E. Bernoulli’s theorem - At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be_______________?
A. minimum
B. maximum
C. zero
D. negative value
E. could be any value
