Home / Civil Engineering / Water Supply Engineering :: Section 4

Civil Engineering :: Water Supply Engineering

  1. Pick up the correct statement from the following :

  2. A.
    For determination of small colour intensities, tintometer is generally used
    B.
    The odour of water sample is generally measured by a term called odour intensity
    C.
    The colour of water sample may be detected by Nessler tube
    D.
    Specific conductivity of water measures the amount of dissolved salt
    E.
    All the above.

    View Answer

    Workspace

    Discuss Discuss in Forum


  3. Before constructing a dam, the factor to be considered for controlling sedimentation, is

  4. A.
    selection of dam site
    B.
    construction of check dams
    C.
    providing vegetation screens
    D.
    providing under-sluices in the dam
    E.
    All the above.

    View Answer

    Workspace

    Discuss Discuss in Forum


  5. The process of passing water through beds of granular materials, is called

  6. A.
    screening
    B.
    sedimentation
    C.
    filtration
    D.
    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum


  7. If Q is discharge is cubicmetres per sec and D is the economical diameter of the pipe. According to Lea

  8. A.
    D = 0.67 to 0.87 Q
    B.
    D = 0.77 to 0.97 Q
    C.
    D = 0.97 to 1.22 Q
    D.
    D = 1.22 to 1.33 Q.

    View Answer

    Workspace

    Discuss Discuss in Forum


  9. Water to the consumers may be supplied from

  10. A.
    infiltration galleries connected to sump well
    B.
    infiltration well dug out on the banks of rivers
    C.
    ranney wells sunk to the water level
    D.
    all the above.

    View Answer

    Workspace

    Discuss Discuss in Forum


  11. If the average daily demand of a city of 50, 000 population, is 20 m.l.d., the maximum daily demand is

  12. A.
    24 mld
    B.
    30 mld
    C.
    36 mld
    D.
    54 mld.

    View Answer

    Workspace

    Discuss Discuss in Forum


  13. Recuperation test is carried out to determine

  14. A.
    turbidity of water
    B.
    pH value of water
    C.
    yield of well
    D.
    discharge from a well.

    View Answer

    Workspace

    Discuss Discuss in Forum


  15. The discharge for the confined tube well is obtained from

  16. A.
    Thiem's formula
    B.
    Darcy's formula
    C.
    Tolman's formula
    D.
    Dupuits formula.

    View Answer

    Workspace

    Discuss Discuss in Forum


  17. Pick up the correct statement from the following :

  18. A.
    Air lift pumps are generally used for pumping water from deep wells
    B.
    Jet pumps are generally used for pumping water from small wells
    C.
    The hydraulic ram works on the principle of water hammer
    D.
    Rotary pumps are provided cams which rotate in opposite direction
    E.
    all the above.

    View Answer

    Workspace

    Discuss Discuss in Forum


  19. Turbidity of water is expressed

  20. A.
    in ppm
    B.
    in numbers in an arbitrary scale
    C.
    by pH value
    D.
    by colour code.

    View Answer

    Workspace

    Discuss Discuss in Forum