Home / Civil Engineering / Hydraulics :: Section 5

Civil Engineering :: Hydraulics

  1. To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m3/sec, the length of water will be

  2. A.
    2.48 m
    B.
    2.49 m
    C.

    2.50 m

    D.

    2.51 m.

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. For a most economical trapezoidal open channel, the half of the top width must be equal to

  4. A.

    the bed width

    B.

    one sloping side

    C.
    the depth of flow
    D.

    None of these.

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. Pick up the correct statement regarding convergent divergent mouth piece from the following :

  6. A.

    It converges upto Venacontracta and then diverges

    B.

    In this mouth piece there is no loss of energy due to sudden enlargement

    C.

    The coefficient of discharge is unity

    D.

    All the above.

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. The value of kinetic energy correction factor (a) for a laminar flow through a circular pipe, is

  8. A.
    0.5
    B.

    1.0

    C.

    1.5

    D.

    2.0

    E.

    2.5

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. The formula Q = m x L x \(\sqrt{2g}\)H3/2 where m = 0.405+\(\frac { 0.003 } {H }\) was suggested by :

  10. A.

    Bazin

    B.

    Francis

    C.
    Cipolletti
    D.

    None of these.

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. One metric slug is equal to

  12. A.

    1 kg wt

    B.
    9.81 kg wt
    C.

    9.81 kg mass

    D.

    0.98 kg wt.

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. Falling drops of water become spheres due to

  14. A.

    adhesion

    B.

    cohesion

    C.

    surface tension

    D.
    viscosity.

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. The most efficient channel section, is

  16. A.

    semi-circular

    B.

    rectangular

    C.
    triangular
    D.

    half hexagon in the form of trapezoid.

    View Answer

    Workspace

    Discuss Discuss in Forum


  17.  

    With a clinging nappe of a weir, the excess discharge, is

  18. A.

    6% to 7%

    B.

    8% to 10%

    C.

    18% to 20%

    D.

    25% to 30%

    E.

    30% to 40%.

    View Answer

    Workspace

    Discuss Discuss in Forum


  19.  

    For steady flow in open channels, which one of the following does not change :

  20. A.

    depth of flow

    B.

    velocity of flow

    C.
    rate of flow
    D.
    All of these.

    View Answer

    Workspace

    Discuss Discuss in Forum