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Civil Engineering :: Irrigation Engineering

  1. To determine the discharge at a section in a stream from its rating curve, the required data are
    i) slope of water surface at the section
    ii) stage at the section
    iii) current meter readings at the section
    The correct answer is

  2. A.

     (i) and (ii)

    B.

     (ii) and (iii)

    C.

     only (ii)

    D.

     only (iii)

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  3. Variability of rainfall is
    i) largest in regions of high rainfall
    ii) largest in coastal areas
    iii) largest in regions of scanty rainfall
    The correct answer is

  4. A.

     only (i)

    B.

     (i) and (ii)

    C.

     only (iii)

    D.

     (ii) and (iii)

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  5. Interception losses are due to
    i) evaporation
    ii) transpiration
    iii) stream flow
    The correct answer is

  6. A.

     only (i)

    B.

     (i)and(ii)

    C.

     (ii) and (iii)

    D.

     (i), (ii) and (iii)

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  7. The forces, which are considered for the analysis of an elementary profile of a gravity dam under empty reservoir condition, are
    i) Water pressure
    ii) Self weight
    iii) Uplift
    iv) Pressure due to earthquake
    The correct answer is

  8. A.

     Only (ii)

    B.

     (i), (ii) and (iii)

    C.

     (i), (ii) and (iv)

    D.

     (i), (ii), (iii) and (iv)

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  9. If straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle θ with horizontal, the area of its cross-section, is

  10. A.

     R (θ + tan θ)

    B.

     R (θ + cot θ)

    C.

     R2 (θ + tan θ)

    D.

     R2 (θ + cot θ)

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  11. If D₁ and D₂ are depths of water upstream and downstream of a hydraulic jump, the loss of head at the jump, is

  12. A.

     (D₂ - D₁)3/D₁D₂

    B.

     (D₂ - D₁)3/2D₁D₂

    C.

     (D₂ - D₁)3/3D₁D₂

    D.

     (D₂ - D₁)3/4D₁D₂

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  13. For the design of major hydraulic structures on the canals, the method generally preferred to, is based on

  14. A.

     Bligh's theory

    B.

     Electrical analogy method

    C.

     The relaxation method

    D.

     Khosla's method of independent variables

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  15. The main function of a divide wall is to

  16. A.

     control the silt entry in the canal

    B.

     prevent river floods from entering the canal

    C.

     separate the undersluices from weir proper

    D.

     provide smooth flow at sufficiently low velocity

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  17. Disposal of extra excavated earth of canals, is utilized to provide a spoil bank on

  18. A.

     Left side

    B.

     Right side

    C.

     Both sides

    D.

     All the above

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  19. The duty is largest

  20. A.

     at the head of water course

    B.

     on the field

    C.

     at the head of a main canal

    D.

     same at all places

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