The stress-strain relation of the newtoneon fluid is________________?

Related Mcqs:

1. 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

2. 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

3. 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.

4. 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.

5. The normal stress is same in all directions at a point in a fluid ___________________?

   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

6. 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

7. 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

8. A fluid is said to be ideal, if it is________________?

   A. incompressible
   B. inviscous
   C. viscous and incompressible
   D. inviscous and compressible
   E. inviscous and incompressible

9. 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

10. The volumetric change of the fluid caused by a resistance is known as_________________?

    A. volumetric strain
    B. volumetric index
    C. compressibility
    D. adhesion
    E. cohesion