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Civil Engineering :: Irrigation Engineering

  1. In a barrage, the crest level is kept

  2. A.

     Low with large gates

    B.

     High with large gates

    C.

     High with no gates

    D.

     Low with no gates


  3. Bligh's theory of seepage assumes

  4. A.

     Equal weightage to the horizontal and vertical creep

    B.

     More weightage to horizontal creep than vertical creep

    C.

     Less weightage to horizontal creep than vertical creep

    D.

     Loss of head follows the sine curve


  5. If B and d are the bed width and depth of a channel in meters, the combined losses due to evaporation and seepage in cumecs per kilometer length of the channel, is

  6. A.

     (1/50) × (B + d)2/3

    B.

     (1/100) × (B + d)2/3

    C.

     (1/150) × (B + d)2/3

    D.

     (1/200) × (B + d)2/3


  7. As compared to crest of the normal portion of the weir, the crest of the under sluice portion of weir is kept at

  8. A.

     lower level

    B.

     higher level

    C.

     same level

    D.

     any of the above depending on the design


  9. The runoff increases with

  10. A.

     increase in intensity of rain

    B.

     increase in infiltration capacity

    C.

     increase in permeability of soil

    D.

     all of the above


  11. A runoff river plant is

  12. A.

     a low head scheme

    B.

     a medium head scheme

    C.

     a high head scheme

    D.

     none of the above


  13. The ratio of the quantity of water stored in the root zone of the crops to the quantity of water actually delivered in the field is known as

  14. A.

     water conveyance efficiency

    B.

     water application efficiency

    C.

     water use efficiency

    D.

     none of the above


  15. Infiltration is the

  16. A.

     movement of water through the soil

    B.

     absorption of water by soil surface

    C.

     both (A) and (B)

    D.

     none of the above


  17. Which of the following is a flexible outlet ?

  18. A.

     submerged pipe outlet

    B.

     Kennedy’s gauge outlet

    C.

     Gibb’s outlet

    D.

     none of the above


  19. Vertical drop fall is satisfactory for a height upto

  20. A.

     0.5 m

    B.

     1.5 m

    C.

     3.5 m

    D.

     5.0 m