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Mechanical Engineering :: Hydraulics and Fluid Mechanics

Hydraulics and Fluid Mechanics - Section 1
Hydraulics and Fluid Mechanics - Section 2
Hydraulics and Fluid Mechanics - Section 3
Hydraulics and Fluid Mechanics - Section 4
Hydraulics and Fluid Mechanics - Section 5
Hydraulics and Fluid Mechanics - Section 6
Hydraulics and Fluid Mechanics - Section 7
Hydraulics and Fluid Mechanics - Section 8
Hydraulics and Fluid Mechanics - section-5

  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.

    \(\frac { 2 } { 3 }\)Cd x b \(\sqrt2gH\)
    B.

     \(\frac { 2 } { 3 }\)Cd x b \(\sqrt2g\) x H
    C.

      \(\frac { 2 } { 3 }\)Cd x b \(\sqrt2g\) x H3/2
    D.

       \(\frac { 2 } { 3 }\)Cd x b \(\sqrt2g\) x H2

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  2. The discharge through a siphon spillway is

    3. A.

    Cd x a \(\sqrt {2gH}\)
    B.

     Cd x a \(\sqrt {2g}\)x H3/2
    C.

    Cd x a \(\sqrt {2g}\)x H2
    D.

    Cd x a \(\sqrt {2g}\)x H5/2

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  3. The maximum discharge over a broad crested weir is

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

    5. A.

    higher
    B.

    lower

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  5. 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)

    6. A.

    1/RN
    B.

    4/RN
    C.

    16/RN
    D.

    64/RN

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