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  • Question

  • Discharge with velocity of approach, over a rectangular weir is


  • Options
  • A. Discharge with velocity of approach, over a rectangular weir is Cd x L x 2g [(H + ha)3/2 + ha3/2] Cd Cd x L x 2g [(H + ha)3/2 + ha3/2]
  • B. Discharge with velocity of approach, over a rectangular weir is Cd x L x 2g [(H + ha)3/2 + ha3/2] Cd Cd x L x 2g [(H + ha)3/2 - ha3/2]
  • C. Discharge with velocity of approach, over a rectangular weir is Cd x L x 2g [(H + ha)3/2 + ha3/2] Cd Cd x L x 2g [(H - ha)3/2 + ha3/2]
  • D. Discharge with velocity of approach, over a rectangular weir is Cd x L x 2g [(H + ha)3/2 + ha3/2] Cd Cd x L x 2g [(H - ha)3/2 - ha3/2]

  • Correct Answer
  • Cd x L x 2g [(H + ha)3/2 - ha3/2] 

    • Hydraulics problems

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    • 1. On a flow net diagram, the distance between two consecutive steam lines at two successive sections are 1 cm and 0.5 cm respectively. If the velocity at the first section is 1 m/sec, the velocity at the second is

    • Options
    • A. 1.0 m/sec
    • B. 0.5 m/sec
    • C. 2.0 m/sec
    • D. 2.5 m/sec
    • E. 3 m/sec.
      • Discuss
    • 2. Specific weight of sea water is more than that of pure water because of

    • Options
    • A. dissolved air
    • B. dissolved salts
    • C. suspended matter
    • D. all the above.
      • Discuss
    • 3. To avoid the tendency of separation of liquid flow, the most suitable ratio of the diameters of the throat and the pipe, is

    • Options
    • A. 1/4 to 1/8
    • B. 1/3 to 1/2
    • C. 1/2 to 3/4.
    • D. none of these.
      • Discuss
    • 4. The dimensional formula of force is

    • Options
    • A. MLT-2
    • B. M-1LT2
    • C. ML-2T
    • D. M-1L2T-2
    • E. none of these.
      • Discuss
    • 5. The flow is called rotational if its velocity normal to the plane of area is equal to

    • Options
    • A. angular velocity vector
    • B. twice the angular velocity vector
    • C. thrice the angular velocity vector
    • D. none of these.
      • Discuss
    • 6. Hydraulic radius is equal to

    • Options
    • A. area divided by the square of wetted perimeter
    • B. area divided by wetted perimeter
    • C. wetted perimeter divided by area
    • D. square root of the area.
      • Discuss
    • 7. For an irrotational flow, the equation is given by

    • Options
    • A. Cauchy-Riemann
    • B. Reynold
    • C. Laplaces
    • D. Bernoulli.
      • Discuss
    • 8. Pick up the correct statement from the following :

    • Options
    • A. Dimensional homogeneity means the dimensions of each term in an equation on both sides are equal
    • B. Dimensionally homogeneous equations are independent of the system of units
    • C. In dimensionally homogeneous equation, the powers of fundamental dimensions on either side of the equation are identical
    • D. All the above.
      • Discuss
    • 9. For solving network problems of pipes, necessary condition is

    • Options
    • A. continuity equation
    • B. energy equation
    • C. Darcy-Weisbach equation
    • D. all the above.
      • Discuss
    • 10. The drop man holes are generally provided in sewers for

    • Options
    • A. industrial areas
    • B. large town ships
    • C. hilly town ships
    • D. cities in plains.
      • Discuss

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