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Chemical Engineering :: Fluid Mechanics

  1. Pressure gradient in the pipe flow is influenced by the

  2. A.

     Diameter of pipe

    B.

     Velocity of the fluid

    C.

     Density & viscosity of the fluid

    D.

     All of the above


  3. In case of supersonic flow of a fluid through pipeline, the 'Mach number' is

  4. A.

     0

    B.

     1

    C.

     < 1

    D.

     > 1


  5. Plunger pumps are used for

  6. A.

     Higher pressure

    B.

     Slurries

    C.

     Viscous mass

    D.

     None of these


  7. Bernoull's equation does not apply to the functioning of a/an

  8. A.

     Venturimeter

    B.

     Orificem

    C.

     Pitot tube

    D.

     None of these


  9. Potential flow is the flow of

  10. A.

     Compressible fluids with shear

    B.

     Compressible fluids with no shear

    C.

     Incompressible fluids with shear

    D.

     Incompressible fluids with no shear


  11. Power number is the ratio of

  12. A.

     Drag stress to inertial stress

    B.

     Inertial stress to drag stress

    C.

     Inertial stress to gravitational stress

    D.

     Gravitational stress to drag stress


  13. Prandtl mixing length is

  14. A.

     Applicable to laminar flow problems

    B.

     A universal constant

    C.

     Zero at the pipe wall

    D.

     None of these


  15. Unsteady uniform flow is represented by flow through a/an

  16. A.

     Long pipe at constant rate

    B.

     Long pipe at decreasing rate

    C.

     Expanding tube at increasing rate

    D.

     Expanding tube at constant rate


  17. Unsteady non-uniform flow is represented by flow through a/an

  18. A.

     Long pipe at constant rate

    B.

     Long pipe at decreasing rate

    C.

     Expanding tube at increasing rate

    D.

     Expanding tube at constant rate


  19. Steady uniform flow is represented by flow through a/an

  20. A.

     Long pipe at constant rate

    B.

     Long pipe at decreasing rate

    C.

     Expanding tube at constant rate

    D.

     None of these