In a static fluid__________________?

Related Mcqs:

1. The surface tension of mercury at normal temperature compared to that of water is____________________?

   A. more
   B. less
   C. same
   D. more or less depending on size of glass tube
   E. none of the above.

2. The property of fluid by virtue of which it offers resistance to shear is called____________________?

   A. surface tension
   B. adhesion
   C. cohesion
   D. viscosity
   E. all of the above

3. Practical fluids____________________?

   A. are viscous
   B. possess surface tension
   C. are compressible
   D. possess all the above properties
   E. possess none of the above properties

4. A balloon lifting in air follows the following principle_________________?

   A. law of gravitation
   B. Archimedes principle
   C. principle of buoyancy
   D. all of the above
   E. continuity equation

5. The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as____________________?

   A. meta center
   B. center of pressure
   C. center of buoyancy
   D. center of gravity
   E. none of the above

6. The peoperty by virtue of which a liquid opposes relative motion between its different layers is called_________________?

   A. surface tension
   B. co-efficient of viscosity
   C. viscosity
   D. osmosis
   E. cohesion

7. In an isothermal atmosphere, the pressure__________________?

   A. decreases linearly with elevation
   B. remains constant
   C. varies in the same way as the density
   D. increases exponentially with elevation
   E. unpredictable

8. Metacentre is the point of intersection of _________________________?

   A. vertical upward force through e.g. of body and center line of body
   B. buoyant force and the center line of body
   C. mid point between e.g. and center of buoyancy
   D. all of the above
   E. none of the above

9. Non uniform flow occurs when ____________________?

   A. the direction and magnitude of the velocity at all points are identical
   B. the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
   C. the magnitude aricf direction of the velocity do not change from point to point in the fluid
   D. the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
   E. velocity, depth, pressure, etc. change from point to point in the fluid flow

10. Froude number is significant in____________________?

    A. supersonics, as with projectile and jet propulsion
    B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
    C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
    D. all of the above
    E. none of the above