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Civil Engineering :: Irrigation Engineering

  1. A raingauge should preferably be fixed

  2. A.

     near the building

    B.

     under the tree

    C.

     in an open space

    D.

     in a closed space

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  3. With the increase in the quantity of water supplied, the yield of most crops

  4. A.

     increases continuously

    B.

     decreases continuously

    C.

     increases upto a certain limit and then becomes constant

    D.

     increases upto a certain limit and then decreases

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  5. If D is the depth of scour below original bed, then the width of launching apron is generally taken as

  6. A.

     1.2 D

    B.

     1.5 D

    C.

     2.0 D

    D.

     2.5 D

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  7. If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be

  8. A.

     15 minutes

    B.

     20 minutes

    C.

     30 minutes

    D.

     60 minutes

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  9. Lane's weighted creep theory assumes

  10. A.

     Equal weightage to horizontal and vertical creeps

    B.

     Double weightage to horizontal creep and one weightage to vertical creep

    C.

     Triple weightage to horizontal creep and one weightage to vertical creep

    D.

     Triple weightage to vertical creep and one weightage to horizontal creep

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  11. The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as

  12. A.

     Efficiency

    B.

     Sensitivity

    C.

     Flexibility

    D.

     Modular limit

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  13. For supplying water to rabi crop, kharif crop and sugarcane, the channel is designed for a capacity equal to the greater of the water requirement of

  14. A.

     rabi or kharif

    B.

     rabi and kharif or sugarcane

    C.

     rabi and sugarcane or kharif and sugarcane

    D.

     rabi or kharif or sugarcane

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  15. Meandering of a river generally occurs, in

  16. A.

     Rocky stage

    B.

     Delta stage

    C.

     Boulder stage

    D.

     Trough stage

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  17. Optimum depth of kor watering for rice is

  18. A.

     135 mm

    B.

     165 mm

    C.

     190 mm

    D.

     215 mm

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  19. A river bend characterized by silting

  20. A.

     scouring on concave side

    B.

     silting on convex side

    C.

     scouring on convex side and on concave side

    D.

     scouring on concave side and silting on convex side

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