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Civil Engineering :: Hydraulics

  1.  

    The minimum specific energy of flow of water in open channel is : (where hc is the critical depth)

  2. A.

    hc

    B.

    \( \frac { hc } { 2 } \)

    C.

    \( \frac {3 hc } { 2 } \)

    D.

    \(\frac { 2 } { 3 } \)hc 


  3. In a venturimeter, the divergent cone is kept

  4. A.

    shorter than convergent cone

    B.

    equal to covergent cone

    C.

    longer than convergent cone

    D.
    none of these.

  5. Specific weight of sea water is more than that of pure water because of

  6. A.
    dissolved air
    B.
    dissolved salts
    C.

    suspended matter

    D.

    all the above.


  7. Total pressure on the top of a closed cylindrical vessesl completely filled with liquid, is directly proportional to

  8. A.

    radius

    B.
    (radius)2
    C.
    (radius)3
    D.

    (radius)4

    E.

    none of these.


  9. Energy equation is usually applicable to

  10. A.
    non-uniform flow
    B.
    turbulent flow
    C.

    laminar flow

    D.

    steady flow.


  11. Poise is the unit of

  12. A.

    viscosity

    B.

    velocity gradient

    C.
    mass density
    D.

    kinematic viscous.


  13. For mountaneous regions having steep slope, wagons for carrying liquid are made with bottom

  14. A.

    parallel to the road surface

    B.
    parallel to the horizontal surface
    C.

    inclined upward while moving upwards

    D.
    inclined downward while moving downwards.

  15. Specific energy of a flowing fluid per unit weight is

  16. A.

    \(\frac { P } {W }\) + \(\frac { V^2 } { 2g }\)

    B.

    \(\frac { P } {W }\)\(\frac { V} { 2g }\)

    C.

    \(\frac { V^2 } { 2g }\) + h 

    D.

    \(\frac { P } {W }\) +\(\frac { V^2 } { 2g }\)+h


  17. The upper surface of the weir over which water flows, is known as

  18. A.

    vein

    B.

    nappe

    C.

    sill

    D.

    none of these.


  19. The ratio of the inertia and viscous forces acting in any flow, ignoring other forces, is called

  20. A.

    Euler number

    B.

    Frode number

    C.

    Reynold number

    D.

    Weber number.