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Mechanical Engineering :: Hydraulics and Fluid Mechanics

  1. The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)

  2. A.

    23Cd x 2gH

    B.

     23Cd x 2g H

    C.

      23Cd x 2g H3/2

    D.

       23Cd x 2g H2

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  3. The discharge through a siphon spillway is

  4. A.

    Cd x 2gH

    B.

     Cd x 2gH3/2

    C.

    Cd x 2gH2

    D.

    Cd x 2gH5/2

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  5. The maximum discharge over a broad crested weir is

  6. A.

    0.384 Cd x L x H1/2

    B.

    0.384 Cd x L x H3/2

    C.

    1.71 Cd x L x H1/2

    D.

    1.71 Cd x L x H3/2

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  7. In a venturimeter, the velocity of liquid at throat is __________ than at inlet.

  8. A.

    higher

    B.

    lower

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  9. The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

  10. A.

    1/RN

    B.

    4/RN

    C.

    16/RN

    D.

    64/RN

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