Steady flow occurs when___________________?

Related Mcqs:

1. 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

2. Non uniform flow occurs when_________________?

   A. the direction and magnitude of the velocity at all points are identical
   B. the velocity of successive fluid particles, at any point, is the same at successive 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

3. 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 uniformly along length
   E. flow occurs at constant fate

4. 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

5. Uniform flow occurs when_____________________?

   A. the direction and magnitude of the velocity at all points are identical
   B. the velocity of successive fluid paiticles, at any point, is the same at successive 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 pleasure
   E. velocity, depth, pressure, etc. change from point to point in the fluid flow

6. Two dimensional flow occurs when________________?

   A. the direction and magnitude of the velocity at all points are identical
   B. the velocity of successive fluid particles, at any point, is the same at successive 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. True one-dimensional flow occurs when_________________?

   A. the direction and magnitude of the veiocity 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

8. According to Bernoulli’s equation for steady ideal fluid flow____________________?

   A. principle of conservation of mass holds
   B. velocity and pressure are inversely proportional
   C. total energy is constant throughout
   D. the energy is constant along a stream-line but may vary across streamlines
   E. none of the above

9. 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

10. 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