True one-dimensional flow occurs when___________________?

Related Mcqs:

1. Two dimensional 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 and 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

2. Uniform flow occurs when___________________?

   A. the direction and magnitude of the velocity at all points are identical
   B. the velocity of successive fluid pai-ticles, at any point, is the same at suc¬cessive periods of time
   C. the magnitude and 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 plsr.e
   E. velocity, depth, pressure, etc. change from point to point in the fluid flow

3. A one dimensional flow is one which___________________?

   A. is uniform flow
   B. is steady uniform flow
   C. takes place in straight lines
   D. involves zero transverse component of flow
   E. takes place in one dimension

4. 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

5. Uniform flow occurs when____________________?

   A. the flow is steady
   B. the flow is streamline
   C. size and shape of the cross section in a particular length remain constant
   D. size and cross section change uniform¬ly along length
   E. flow occurs at constant fate

6. Steady 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 and 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

7. For pipes, turbulent flow occurs when Reynolds number is_________________?

   A. less than 2000
   B. between 2000 and 4000
   C. more than 4000
   D. less than 4000
   E. none of the above

8. For pipes, laminar flow occurs when Roynolds number is__________________?

   A. less than 2000
   B. between 2000 and 4000
   C. more than 4000
   D. less than 4000
   E. none of the above

9. When the flow parameters at any given instant remain same at every point, then flow is said to be____________________?

   A. quasi static
   B. steady state
   C. laminar
   D. uniform
   E. static.

10. Normal depth in open channel flow is the depth of flow corresponding to_______________?

    A. steady flow
    B. unsteady flow
    C. laminar flow
    D. uniform flow
    E. critical flow